Banana Bundt Cake with Chocolate Glaze Recipe
This Banana Bundt Cake with Chocolate Glaze is the kind of cake I bake when I want something comforting, reliable, and a little bit showy without fuss. The crumb is tender from mashed ripe bananas and buttermilk, and the glaze gives a glossy, chocolate finish that somehow makes the everyday feel celebratory.
No complicated techniques, just a few simple steps and attention to temperature and timing. If you have a bundt pan, an electric mixer, and a bowl set-up, you’re already most of the way there. I’ll walk you through the exact steps I use, why they matter, and how to fix things if the cake behaves differently than you expect.
What’s in the Bowl
This section breaks down the building blocks so you understand what each ingredient is doing. I list the ingredients below and pair each with a short, practical tip or note about function.
Ingredients
- 2.25call-purpose flour — the cake’s structure; measure carefully and spoon into the cup rather than packing.
- 1cgranulated sugar — provides sweetness and helps create a tender, fine crumb.
- ½cpacked light brown sugar — adds moisture and a gentle caramel note.
- 1.5teaspoon baking powder — primary leavening for lift; ensure it’s fresh.
- 1teaspoon baking soda — reacts with the buttermilk and banana for additional lift and browning.
- ½teaspoons salt — balances sweetness and enhances flavor.
- 1cmashed ripe bananasabout 2 — moisture, flavor, and natural sweetness; ripe bananas (lots of brown speckles) work best.
- ¾cbuttermilk — acidity for tenderness and to activate the baking soda.
- ½cvegetable or canola oil — keeps the cake moist longer than butter alone.
- 1tsvanilla extract — flavor enhancer; use pure if you have it.
- 2large eggsroom temperature — structure and richness; bring to room temp for even mixing.
- ½cunsalted butter — used in the glaze for richness and a glossy finish.
- ⅓cmilk — thins the glaze and adds silkiness; whole or 2% works fine.
- 6tablespoonunsweetened cocoa powder — provides the chocolate backbone of the glaze; sift to avoid lumps.
- 3cpowdered sugar — sweetens and thickens the glaze; sift into the warm cocoa mix.
- 1teaspoonvanilla extract — rounds the chocolate flavor in the glaze.
Stepwise Method: Banana Bundt Cake with Chocolate Glaze
- Preheat the oven to 350 degrees F. Prepare a bundt pan by spraying it with baking spray or greasing it with butter and dusting lightly with flour; set the pan aside.
- In a large mixing bowl, whisk together the dry ingredients: 2.25call-purpose flour, 1c granulated sugar, ½c packed light brown sugar, 1.5teaspoon baking powder, 1teaspoon baking soda, and ½teaspoons salt. Set the dry mixture aside.
- In a separate bowl, mash 1c mashed ripe bananas (about 2). Add ¾c buttermilk, ½c vegetable or canola oil, 1ts vanilla extract, and 2 large eggs (room temperature). Beat with an electric mixer until the mixture is smooth and homogenous.
- Pour the wet banana mixture into the bowl with the dry ingredients. Mix until combined, then beat the batter on medium speed for 2 minutes to aerate and ensure a smooth batter.
- Pour the batter into the prepared bundt pan and smooth the top with a spatula.
- Bake for 45 to 50 minutes, or until a toothpick inserted into the center of the cake comes out clean or with a few moist crumbs.
- Remove the cake from the oven and let it cool in the pan for 10 minutes. After 10 minutes, place a plate or cooling rack on top of the bundt pan and invert the pan to release the cake. If the cake does not release cleanly, let it sit inverted in the pan for up to an additional 10 minutes and try again, tapping the sides gently.
- Transfer the cake to a cooling rack set over a rimmed baking sheet or pan and allow the cake to cool until it is no longer hot to the touch and is cool enough that glaze will not run off (see step 12).
- While the cake cools, make the chocolate glaze: in a medium saucepan combine ½c unsalted butter and ⅓c milk. Sift 6 tablespoons unsweetened cocoa powder into the saucepan.
- Cook the butter, milk, and cocoa mixture over medium heat, whisking constantly, until the butter melts and the mixture becomes slightly thickened. Remove the saucepan from the heat and let the mixture cool for 10 minutes.
- Sift 3c powdered sugar into the saucepan in batches and whisk until the glaze is smooth and pourable. Whisk in 1teaspoon vanilla extract until incorporated. Adjust the consistency by whisking thoroughly; the glaze should be pourable but not thin.
- Place the cooled cake on the cooling rack set over the rimmed pan. Pour the chocolate glaze evenly over the top of the cake, allowing excess to drip into the pan.
- Let the glazed cake sit at room temperature for at least 30 minutes so the glaze can set before slicing and serving.
Why It’s My Go-To
This cake strikes a sweet balance: it’s forgiving and flavorful. The oil keeps it moist day-to-day, and buttermilk brightens the banana flavor while feeding the baking soda for a good rise. The glaze transforms a simple loaf into something you’d happily bring to a small dinner or enjoy with coffee at home.
It saves time because the batter is straightforward—no creaming of butter and sugar. Yet the finish looks special. That combination of ease and polish is why this recipe lives in my regular rotation.
Substitutions by Category
Dry goods
- You can use a mix of all-purpose and whole wheat flour if you want a nuttier note—replace up to 25% of the flour with whole wheat, and expect a slightly denser crumb.
Fats & liquids
- If you prefer olive oil for flavor, use a light-tasting olive oil. Butter would add flavor but reduce longevity of moistness—melt and cool before using if substituting the oil.
- If you don’t have buttermilk, mix ¾c milk with ¾ tablespoon lemon juice or vinegar and let sit for 5–10 minutes as a quick swap.
Sweeteners & add-ins
- Swap light brown sugar for dark brown for a richer molasses tang. You can fold in ½ to 1 cup chopped nuts or chocolate chips after step 4 if you like texture, but the cake is lovely plain.
Recommended Tools
- Bundt pan (10–12 cup capacity preferred) — the shape creates a great presentation and even bake.
- Electric mixer — helps fully incorporate the wet mixture and aerate the batter in step 4.
- Sifter or fine-mesh sieve — for cocoa powder and powdered sugar to avoid lumps in the glaze.
- Cooling rack set over a rimmed sheet — collects drips and makes glazing cleaner.
- Spatula and whisk — flexible spatula for smoothing batter, whisk for making a silky glaze.
Common Errors (and Fixes)
Problem: Cake sticks in the pan. Fix: Make sure you properly grease and flour the bundt pan, paying attention to nooks; if it still sticks, invert and let sit a few extra minutes before gently tapping.
Problem: Center sinks. Fix: Underbaking or opening the oven too early can cause sinking. Test with a toothpick at 45 minutes; if it’s wet, give it 3–5 more minutes and recheck. Also ensure your leavening is fresh.
Problem: Glaze too thin or too runny. Fix: Let the butter/cocoa mix cool the full 10 minutes before adding powdered sugar, then sift the sugar in batches and whisk until you reach a pourable but not watery consistency. If it’s too thin, add a little more powdered sugar; if too thick, whisk in a teaspoon of milk at a time.
In-Season Flavor Ideas
When bananas are at their peak, let them lead. Add a teaspoon of cinnamon or a pinch of nutmeg to the dry ingredients for warm spice. In late summer, stir in ½ cup chopped toasted pecans for a nutty complement; in winter, a splash of dark rum (1–2 teaspoons) in the banana mixture pairs nicely with the chocolate glaze.
Recipe Notes & Chef’s Commentary
Notes on texture: This cake should be moist but not gummy. The oil and mashed banana keep it tender for a couple of days if stored under a cake dome. I prefer slicing it once the glaze has set so you get clean cuts and a nice glaze edge on each slice.
Timing tips: Allow the cake to cool just enough to release from the pan, then cool completely before glazing. If you glaze a hot cake, the glaze will run off and pool at the bottom.
Make-ahead: You can bake the cake a day ahead and store it unglazed wrapped tightly at room temperature. Warm the glaze slightly before pouring so it spreads smoothly.
Save It for Later
To freeze: wrap the cooled, unglazed cake tightly in plastic wrap, then foil. Freeze up to 2 months. Thaw overnight in the refrigerator, bring to room temp, then prepare and pour the glaze when ready to serve.
To save slices: wrap individual slices in plastic and store up to a week in the refrigerator. Reheat gently in a microwave (10–15 seconds) to soften before serving.
Ask the Chef
Q: Can I halve this recipe for a smaller pan? A: You can, but be careful with pan size and bake time—use a smaller bundt or a loaf pan. Start checking doneness 10–15 minutes earlier.
Q: My glaze developed lumps. A: Whisk vigorously and warm gently over low heat, or pass the glaze through a fine-mesh sieve. Always sift the powdered sugar into the warm cocoa mix in batches to prevent lumps.
Q: Can I make this dairy-free? A: For a dairy-free version, use a plant-based milk for both the buttermilk substitute and the glaze, and replace butter in the glaze with a dairy-free butter or coconut oil. I recommend testing the glaze thickness, as plant milk varies.
Wrap-Up
This Banana Bundt Cake with Chocolate Glaze is straightforward, forgiving, and satisfying. It pairs with coffee or tea and holds well for company or a quiet afternoon treat. Follow the steps, mind the cooling and glazing windows, and you’ll have a cake that looks intentional and tastes like a warm, thoughtful moment.
If you bake it, come back and tell me how it turned out and what tweaks you made. I love hearing what people add or change—those small shifts are how good recipes become your recipes.
Banana Bundt Cake with Chocolate Glaze Recipe
Ingredients
Ingredients
- 2.25 call-purpose flour
- 1 cgranulated sugar
- 1/2 cpacked light brown sugar
- 1.5 teaspoonbaking powder
- 1 teaspoonbaking soda
- 1/2 teaspoonsalt
- 1 cmashed ripe bananasabout 2
- 3/4 cbuttermilk
- 1/2 cvegetable or canola oil
- 1 tsvanilla extract
- 2 large eggsroom temperature
- 1/2 cunsalted butter
- 1/3 cmilk
- 6 tablespoonunsweetened cocoa powder
- 3 cpowdered sugar
- 1 teaspoonvanilla extract
Instructions
Instructions
- Preheat the oven to 350 degrees F. Prepare a bundt pan by spraying it with baking spray or greasing it with butter and dusting lightly with flour; set the pan aside.
- In a large mixing bowl, whisk together the dry ingredients: 2.25call-purpose flour, 1c granulated sugar, ½c packed light brown sugar, 1.5teaspoon baking powder, 1teaspoon baking soda, and ½teaspoons salt. Set the dry mixture aside.
- In a separate bowl, mash 1c mashed ripe bananas (about 2). Add ¾c buttermilk, ½c vegetable or canola oil, 1ts vanilla extract, and 2 large eggs (room temperature). Beat with an electric mixer until the mixture is smooth and homogenous.
- Pour the wet banana mixture into the bowl with the dry ingredients. Mix until combined, then beat the batter on medium speed for 2 minutes to aerate and ensure a smooth batter.
- Pour the batter into the prepared bundt pan and smooth the top with a spatula.
- Bake for 45 to 50 minutes, or until a toothpick inserted into the center of the cake comes out clean or with a few moist crumbs.
- Remove the cake from the oven and let it cool in the pan for 10 minutes. After 10 minutes, place a plate or cooling rack on top of the bundt pan and invert the pan to release the cake. If the cake does not release cleanly, let it sit inverted in the pan for up to an additional 10 minutes and try again, tapping the sides gently.
- Transfer the cake to a cooling rack set over a rimmed baking sheet or pan and allow the cake to cool until it is no longer hot to the touch and is cool enough that glaze will not run off (see step 12).
- While the cake cools, make the chocolate glaze: in a medium saucepan combine ½c unsalted butter and ⅓c milk. Sift 6 tablespoons unsweetened cocoa powder into the saucepan.
- Cook the butter, milk, and cocoa mixture over medium heat, whisking constantly, until the butter melts and the mixture becomes slightly thickened. Remove the saucepan from the heat and let the mixture cool for 10 minutes.
- Sift 3c powdered sugar into the saucepan in batches and whisk until the glaze is smooth and pourable. Whisk in 1teaspoon vanilla extract until incorporated. Adjust the consistency by whisking thoroughly; the glaze should be pourable but not thin.
- Place the cooled cake on the cooling rack set over the rimmed pan. Pour the chocolate glaze evenly over the top of the cake, allowing excess to drip into the pan.
- Let the glazed cake sit at room temperature for at least 30 minutes so the glaze can set before slicing and serving.
Equipment
- Bundt Pan
- Mixing Bowls
- Electric Mixer
- Spatula
- Whisk
- Medium Saucepan
- Sifter
- Cooling Rack
- Rimmed Baking Sheet
