These cupcakes are one of those desserts that look extravagant but are straightforward if you break them into parts. Ripe bananas keep the cupcake base tender and fragrant, while a fudgy brownie dollop in the center gives each bite a molten chocolate surprise. The toasted marshmallow meringue on top finishes the experience with a smoky-sweet contrast that plays beautifully with banana and chocolate.

I tested the timing so you don’t have to: the cupcakes bake quickly, the brownie center sets softly, and the stovetop-to-stand-mixer meringue is reliably glossy when you follow the order below. I’ll walk you through shopping, staging, and a few easy tips for perfectly toasted tops without overbaking the cake.

No frills, just a dependable method you can make on a weekend or for a special occasion. If you like contrast in texture — soft cake, chewy brownie, pillowy, slightly charred meringue — these are worth the effort.

Ingredients

1 1/3 cups all-purpose flour — provides the structure for the banana cupcakes.
1 1/4 teaspoon baking soda — leavens the cupcakes so they rise properly.
1/4 teaspoon salt — balances sweetness and enhances flavor.
1 large egg — binds the cupcake wet ingredients.
3/4 cup loosely packed brown sugar — adds moisture and a hint of caramel to the cupcakes.
1 teaspoon vanilla extract — aromatic flavor for the cupcake batter (and used again in the meringue).
3 cups mashed ripe bananas — the main flavor and moisture; about 3 large or 4 small bananas (about 1 1/4 ).
1/4 cup Greek yogurt — adds tang and tenderizes the crumb.
1/2 cup butter, melted — used in the cupcake batter for richness.
1/3 cup milk — brings the batter to the right consistency.
1 cup chocolate chips — fold into the banana batter for pockets of melted chocolate.
1/2 cup butter, melted (1 stick) — used in the brownie batter for fudgy texture.
4 tablespoons cocoa powder — chocolate flavor base for the brownie center.
2 eggs — give structure to the brownie batter.
1/2 cup granulated sugar — sweetens the brownie mixture.
3/4 cup flour — the dry component of the brownie that keeps it tender.
1/2 teaspoon vanilla extract — chocolate-enhancing flavor for the brownie.
1/4 teaspoon salt — balances the brownie sweetness.
1/2 cup chocolate chips — folded into the brownie batter for extra chocolate pockets.
4 large egg whites — the base for the toasted marshmallow meringue frosting.
1 1/2 cups granulated sugar — stabilizes and sweetens the meringue.
1/2 cup light corn syrup — helps keep the meringue glossy and smooth.
large pinch of salt — brightens the meringue flavors.
2 teaspoons pure vanilla extract — folded into the meringue at the end for flavor.
Homemade Hot Fudge — optional garnish for serving.
Store-bought Hot Fudge — acceptable shortcut for garnish.

Your Shopping Guide

Buy the ripest bananas you can find — brown-speckled fruit will mash easily and bring deep sweetness. For a strong banana flavor, plan to use three large or four small bananas to reach the 3 cups mashed target.

Two types of chocolate are used: chocolate chips for the cupcake batter and for the brownie centers. Pick the chocolate you prefer (semi-sweet is a safe, crowd-pleasing choice). If you want extra fudginess, pick a higher-cocoa chip.

Fresh eggs are important here: you’ll use four whole eggs across the cupcake and brownie batters plus four egg whites for the meringue. If you prefer to separate eggs in advance, keep the whites at room temperature for better volume when whipping.

Make sure you have light corn syrup for the meringue; it stabilizes the foam and keeps it glossy. If you’re skipping the homemade hot fudge, buy a jar of good store-bought hot fudge to drizzle at the end.

Cooking Fugdy Brownie Stuffed Banana Cupcakes with Toasted Marshmallow Frosting: The Process

Preheat oven to 350°F (175°C). Line two muffin tins with cupcake liners and set aside.
Make the cupcake dry mix: in a medium bowl whisk together 1 1/3 cups all-purpose flour, 1 1/4 teaspoon baking soda, and 1/4 teaspoon salt. Set aside.
Make the cupcake wet mix: in a large bowl whisk 1 large egg until combined. Add 3/4 cup loosely packed brown sugar and whisk until smooth. Stir in 1 teaspoon vanilla extract, 1/4 cup Greek yogurt, and 1/2 cup butter, melted. Mix until combined.
Combine cupcake batter: add the dry mix to the wet mix and stir until mostly incorporated. Stir in 3 cups mashed ripe bananas and 1/3 cup milk until the batter comes together. Fold in 1 cup chocolate chips. Set cupcake batter aside.
Make the brownie batter: in a large bowl stir 1/2 cup butter, melted (1 stick) together with 4 tablespoons cocoa powder until smooth.
In a separate bowl, beat 2 eggs (with a mixer or whisk) until combined. Add 1/2 cup granulated sugar and 1/2 teaspoon vanilla extract and beat until well combined. Stir the egg mixture into the butter–cocoa mixture.
Add 3/4 cup flour and 1/4 teaspoon salt to the brownie mixture and mix until just combined. Fold in 1/2 cup chocolate chips. Do not overmix.
Portion cupcake batter into liners: spoon about 1/8 cup of the banana cupcake batter into the bottom of each lined muffin cup so each liner is roughly 1/4 full.
Add the brownie center: using a tablespoon, place approximately 1 tablespoon of brownie batter in the center of each cupcake, trying to keep it centered and not touching the sides.
Top with remaining cupcake batter: add enough banana batter over each brownie center so each liner is about 3/4 full.
Bake the cupcakes on the middle rack at 350°F for 15–18 minutes, or until a toothpick inserted into the banana portion (not the brownie center) comes out with a few moist crumbs. Remove from oven.
Let cupcakes cool in the pans for 5 minutes, then transfer to a wire rack and let cool completely before frosting.
Prepare the meringue (toasted marshmallow frosting): place a pot with about 2 inches of water over medium heat and bring to a gentle simmer.
In a large heat-proof bowl whisk together 4 large egg whites, 1 1/2 cups granulated sugar, 1/2 cup light corn syrup, and a large pinch of salt until grainy.
Place the bowl over the simmering water (bowl should not touch the water) and whisk continuously until the sugar is dissolved and the mixture is warm to the touch, about 4–6 minutes. Do not allow the mixture to get so hot that the eggs start cooking.
Transfer the warmed egg-white mixture to the bowl of a stand mixer fitted with the whisk attachment. Beat on high until the meringue is glossy, fluffy, and holds stiff peaks, about 4–6 minutes. Beat in 2 teaspoons pure vanilla extract at the end.
Frost the cooled cupcakes: using a spoon, spatula, or piping bag, place a generous dollop of meringue on each cupcake and shape as desired.
Toast the meringue under the broiler in batches: turn the oven broiler on high and place up to 12 cupcakes on a baking sheet. Put the sheet under the broiler with the oven door slightly ajar and watch constantly; toast for about 30 seconds to 1 minute, rotating the pan as needed so the tops brown evenly. Remove when nicely browned. Repeat with remaining cupcakes.
If desired, drizzle cupcakes with homemade hot fudge or store-bought hot fudge before serving.
Serve immediately after toasting for best texture.

Why You’ll Love This Recipe

Texture contrast is the headline here: soft, banana-scented cake; a dense, fudgy brownie surprise; and a cloud-like toasted meringue on top. Each element is familiar on its own, but together they make something playful and impressive.

The method scales well for a crowd — the meringue can be whipped while cupcakes cool, so active hands-on time is mostly in assembly and vigilance under the broiler. It’s a great dessert to make ahead to the point of cooling, then toast and serve right before guests arrive.

What to Use Instead

Homemade Hot Fudge or Store-bought Hot Fudge — both are listed in the ingredients and are valid finishing options.
Chocolate chips — the recipe calls for chocolate chips; use whatever chocolate chips you prefer for flavor intensity.
Butter — the recipe specifies melted butter for both batters; use the same butter across both batters as written.

Gear Up: What to Grab

Muffin tins — two standard 12-cup tins or one 24-cup if you have it.
Cupcake liners — to keep the cupcakes neat and to make removing them easier.
Mixing bowls — medium and large for dry and wet mixes, plus one heat-proof bowl for the meringue.
Stand mixer or hand mixer — useful for whipping the meringue to stiff peaks.
Whisk and spatula — for folding and finishing batter.
Wire rack — for cooling cupcakes evenly.
Broiler-safe baking sheet — for toasting the meringue under the broiler.
Measuring cups and spoons — accurate measuring keeps the textures right.

Slip-Ups to Skip

Overfilling liners — keep the final fill to about 3/4 full so the cupcakes have room to rise without overflowing.
Testing the brownie center with a toothpick — the bake test is for the banana portion only; the brownie center will remain softer.
Overheating the meringue — while warming over the simmer, whisk constantly and stop when warm to the touch so the whites won’t scramble.
Walking away under the broiler — toasting happens quickly. Stay at the oven and watch constantly so the meringue browns, not burns.

Spring to Winter: Ideas

Spring and summer are perfect for lighter presentations — a simple drizzle of room-temperature fudge, or a scattering of toasted chopped nuts for contrast. In cooler months, serve warmed with a side of coffee or a scoop of ice cream to echo the chocolate and marshmallow notes.

Behind-the-Scenes Notes

I like to prepare the brownie batter first and keep it in the bowl while I make the banana batter; it makes assembly faster. Cooling the cupcakes completely before frosting is essential — warm cupcakes will cause the meringue to weep or slide.

When toasting, place only as many on the broiler sheet as will fit in a single layer so heat is even. Rotate the pan for uniform browning.

Freezer-Friendly Notes

Unfrosted cupcakes freeze well: wrap tightly in plastic and store in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator or on the counter, then bring to room temperature before preparing the meringue and toasting.

Do not freeze meringue-topped cupcakes — the texture will suffer. Instead, make the meringue and toast right before serving after thawing the cupcakes.

Handy Q&A

Can I make the meringue earlier? You can make the meringue just before serving and keep it at room temperature briefly, but it’s best whipped and toasted right before serving for texture and lift.
What if my meringue softens after toasting? Serve immediately; toasted meringue will begin to settle after a short while. Toast batches only when ready to serve them.
Are the brownie centers fully baked? The brownies are intended to be soft and fudgy in the center. Bake until the banana portion tests done; the brownie may remain slightly gooey and that’s part of the appeal.
Can I use a kitchen torch instead of the broiler? Yes — a kitchen torch gives more control for small batches and avoids moving cupcakes into the oven under heat.

Bring It to the Table

Plate these cupcakes on a shallow platter so guests can admire the toasted tops. If you like, drizzle hot fudge in a thin stream over each cupcake and offer extra on the side. A light dusting of cocoa or a few chocolate shavings adds polish without overpowering the toasted meringue.

Serve immediately after toasting for the best contrast of textures. These are best eaten the day they’re toasted — the brownie center and meringue are happiest fresh.

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Fugdy Brownie Stuffed Banana Cupcakes with Toasted Marshmallow Frosting

Banana cupcakes filled with a fudgy brownie center and topped with a toasted marshmallow-style meringue. Optionally drizzle with hot fudge before serving.

Prep Time40

Cook Time35

Total Time1 15

Course: Dessert

Servings: 24 servings

Ingredients

Cupcakes

1 1/3 cupsall-purpose flour
1 1/4 teaspoonbaking soda
1/4 teaspoonsalt
1 large egg
3/4 cuploosely packed brown sugar
1 teaspoonvanilla extract
3 cupslarge or 4 small ripe bananasmashed about 1 1/4
1/4 cupgreek yogurt
1/2 cupbuttermelted
1/3 cupmilk
1 cupchocolate chips
Brownies
1/2 buttermelted 1 stick
4 tablespoonscocoa powder
2 eggs
1/2 cupsugar
3/4 Flour
1/2 teaspoonsvanilla extract
1/4 teaspoonsalt
1/2 cupchocolate chips

For the Meringue

4 large egg whites
1 1/2 cupsgranulated sugar
1/2 cuplight corn syrup
large pinch of salt
2 teaspoonspure vanilla extract
Homemade Hot Fudgefor garnish or use store bought

Instructions

Preheat oven to 350°F (175°C). Line two muffin tins with cupcake liners and set aside.
Make the cupcake dry mix: in a medium bowl whisk together 1 1/3 cups all-purpose flour, 1 1/4 teaspoon baking soda, and 1/4 teaspoon salt. Set aside.
Make the cupcake wet mix: in a large bowl whisk 1 large egg until combined. Add 3/4 cup loosely packed brown sugar and whisk until smooth. Stir in 1 teaspoon vanilla extract, 1/4 cup Greek yogurt, and 1/2 cup butter, melted. Mix until combined.
Combine cupcake batter: add the dry mix to the wet mix and stir until mostly incorporated. Stir in 3 cups mashed ripe bananas and 1/3 cup milk until the batter comes together. Fold in 1 cup chocolate chips. Set cupcake batter aside.
Make the brownie batter: in a large bowl stir 1/2 cup butter, melted (1 stick) together with 4 tablespoons cocoa powder until smooth.
In a separate bowl, beat 2 eggs (with a mixer or whisk) until combined. Add 1/2 cup granulated sugar and 1/2 teaspoon vanilla extract and beat until well combined. Stir the egg mixture into the butter–cocoa mixture.
Add 3/4 cup flour and 1/4 teaspoon salt to the brownie mixture and mix until just combined. Fold in 1/2 cup chocolate chips. Do not overmix.
Portion cupcake batter into liners: spoon about 1/8 cup of the banana cupcake batter into the bottom of each lined muffin cup so each liner is roughly 1/4 full.
Add the brownie center: using a tablespoon, place approximately 1 tablespoon of brownie batter in the center of each cupcake, trying to keep it centered and not touching the sides.
Top with remaining cupcake batter: add enough banana batter over each brownie center so each liner is about 3/4 full.
Bake the cupcakes on the middle rack at 350°F for 15–18 minutes, or until a toothpick inserted into the banana portion (not the brownie center) comes out with a few moist crumbs. Remove from oven.
Let cupcakes cool in the pans for 5 minutes, then transfer to a wire rack and let cool completely before frosting.
Prepare the meringue (toasted marshmallow frosting): place a pot with about 2 inches of water over medium heat and bring to a gentle simmer.
In a large heat-proof bowl whisk together 4 large egg whites, 1 1/2 cups granulated sugar, 1/2 cup light corn syrup, and a large pinch of salt until grainy.
Place the bowl over the simmering water (bowl should not touch the water) and whisk continuously until the sugar is dissolved and the mixture is warm to the touch, about 4–6 minutes. Do not allow the mixture to get so hot that the eggs start cooking.
Transfer the warmed egg-white mixture to the bowl of a stand mixer fitted with the whisk attachment. Beat on high until the meringue is glossy, fluffy, and holds stiff peaks, about 4–6 minutes. Beat in 2 teaspoons pure vanilla extract at the end.
Frost the cooled cupcakes: using a spoon, spatula, or piping bag, place a generous dollop of meringue on each cupcake and shape as desired.
Toast the meringue under the broiler in batches: turn the oven broiler on high and place up to 12 cupcakes on a baking sheet. Put the sheet under the broiler with the oven door slightly ajar and watch constantly; toast for about 30 seconds to 1 minute, rotating the pan as needed so the tops brown evenly. Remove when nicely browned. Repeat with remaining cupcakes.
If desired, drizzle cupcakes with homemade hot fudge or store-bought hot fudge before serving.
Serve immediately after toasting for best texture.