I make burgers for a living — literally — and this Blue Cheese Burger lives on the short list of things I’ll cook for friends on short notice. It’s built around a few bold moves: melting crumbled Gorgonzola over a seared patty, a sweet onion marmalade to balance the tang, and a surprising stretch of black beans that keeps the texture juicy without changing the flavor profile. It’s honest, unfussy, and worth the small extra step of broiling at the end.

The method is practical: caramelize onions, mash beans, fold in the beef without overworking it, and finish under the broiler so the blue cheese melts into a glossy, savory blanket. The Dijon brush adds a bright edge while the Worcestershire grounds the beef. You’ll come away with a burger that bites back in all the right ways: savory, slightly sweet, and salty in the best sense.

What Goes In

Ingredients

1 large red onion, thinly sliced (about 2 cups) — the base for the onion marmalade; slices caramelize down into sweet, jammy topping.
1 tablespoon extra virgin olive oil — used to sauté the onions and to brush the skillet for cooking; adds necessary fat for browning.
2 teaspoons brown sugar — helps the onions caramelize and gives the marmalade a rounded sweetness.
½ teaspoon kosher salt — seasons the onions and the patties; split between components in the recipe.
2 tablespoons balsamic vinegar — brightens and deepens the marmalade with acidity and sweetness.
1 can black beans (15 ounces) rinsed and drained — mashed into the mix to add moisture, binder power, and reduce the amount of beef per patty without a bean-forward taste.
1 large egg, beaten — acts as a binder so the patties hold together when mixed with beans and beef.
3 tablespoons extra virgin olive oil — folded into the bean mixture for sheen and to help the mixture bind; extra oil is also used to brush the skillet.
3 tablespoons Dijon mustard, divided — some is mixed in for flavor and the reserved portion is brushed on patties to add tang and help the crust form.
2 teaspoons garlic powder — dry seasoning for steady, even garlic flavor without extra moisture.
1 teaspoon kosher salt — seasons the patty mixture; used with the other half-teaspoon already in the onion step.
1 teaspoon ground black pepper — straightforward seasoning for warmth and bite.
1 teaspoon Worcestershire sauce — umami booster that rounds out the beefy flavor.
1 pound 90% lean ground beef — the main protein; lean enough to benefit from the beans’ moisture but still browns well.
8 ounces Gorgonzola cheese, or other mild blue cheese, crumbled — melted on the patties for the signature tang and creamy pockets of flavor.
6 whole wheat hamburger buns, lightly toasted — carrier for the finished burger; toasting keeps them from getting soggy and adds crunch.
Sautéed Mushrooms — optional topping mentioned in the assembly step; earthy addition if you choose to use them.

Directions: Blue Cheese Burger

Position an oven rack in the upper third of the oven and set the broiler to high.
Make the onion marmalade: heat 1 tablespoon extra virgin olive oil in a large skillet over medium-high. Add the thinly sliced red onion, 2 teaspoons brown sugar, and 1/2 teaspoon kosher salt. Sauté, stirring occasionally, about 15 minutes until the onions are dark golden brown and tender. Stir in 2 tablespoons balsamic vinegar and cook 2 more minutes. Transfer the marmalade to a bowl and set aside.
Rinse and drain the can of black beans. Place the beans in a large bowl and mash them until mostly broken up.
To the mashed beans add the beaten egg, 3 tablespoons extra virgin olive oil, Dijon mustard (reserve some for brushing the patties), 2 teaspoons garlic powder, 1 teaspoon kosher salt, 1 teaspoon ground black pepper, and 1 teaspoon Worcestershire sauce. Mix until evenly combined.
Add the 1 pound ground beef to the bean mixture. Gently stir with a fork just until incorporated, taking care not to overwork or compress the meat.
Divide the mixture into 6 equal portions and shape each into an approximately 3 1/2-inch-wide patty.
Brush both sides of each patty with the reserved Dijon mustard.
Brush a large ovenproof skillet with extra virgin olive oil and heat it over medium-high. Add the patties (do not overcrowd; cook in batches if necessary). Cook 3–4 minutes on the first side, until a golden crust forms.
Flip the patties, top each immediately with the crumbled Gorgonzola (8 ounces divided among the patties), and cook about 3 more minutes on the second side, or longer if you prefer a more well-done burger.
During the last moments of cooking, place the skillet under the preheated broiler for about 30 seconds to finish melting the blue cheese—watch closely to avoid burning.
Lightly toast the 6 whole wheat hamburger buns and keep them warm.
Assemble: place each patty on a toasted bun, top with a heaping spoonful of the onion marmalade (and sautéed mushrooms, if using), and serve immediately.

Why It Deserves a Spot

This burger hits contrasts cleanly: the blue cheese gives sharp, creamy pockets; the onion marmalade adds slow-cooked sweetness; and the Dijon and Worcestershire make sure each bite stays savory and balanced. Adding black beans means you stretch the beef without making the burger taste vegetarian — instead it becomes juicier and a touch more tender. That’s a rare win: a small pantry addition that improves texture and value.

You don’t need to fuss with many toppings or sauces. The steps are straightforward and forgiving, and finishing the patties under the broiler is a quick trick to get the cheese beautifully melted without overcooking the meat. Serve this when you want something a little elevated from a regular cheeseburger but still quick enough for weeknight plans.

Ingredient Flex Options

Gorgonzola or other mild blue cheese — use the amount given; if you prefer milder pockets, crumble slightly less across the patties.
Black beans — they’re meant to be mashed and folded in; if you skip them you’ll need a firmer binder, so proceed with care.
Onion marmalade — the onions can be cooked a little less for more bite or longer for an even deeper jam; keep the balsamic to finish for brightness.
Whole wheat buns — stick to toasting them as directed to prevent sogginess and add texture; other sturdy buns will behave similarly.

Tools of the Trade

Large skillet (ovenproof preferred) — for both caramelizing onions and searing the patties before broiling.
Can opener and colander — to rinse and drain the black beans.
Mixing bowl and fork — to mash the beans and gently combine the meat.
Spatula and tongs — for flipping and moving patties.
Measuring spoons and scale or measuring cup — to portion ingredients and divide the patties evenly into six portions.
Oven with broiler — needed to finish melting the blue cheese quickly and at high heat.

Common Errors (and Fixes)

Overworking the meat — If you stir too vigorously or press the mixture when shaping, the patties become dense. Fix: gently fold until just combined and shape with a light hand.
Onions burning or not caramelizing — Too high heat scorches them; too low heat makes them sweat without developing color. Fix: medium-high is right; stir occasionally and be patient for full color (about 15 minutes as directed).
Cheese not melting — If the cheese is cold and the pan not hot enough, it won’t soften. Fix: place the skillet under the preheated broiler for the last 30 seconds as directed and watch closely to avoid charring.
Patties falling apart — If binders are too little or you didn’t mash the beans enough, they can crumble. Fix: mash beans until mostly broken up and mix in the egg and oil as instructed; that combination holds the patties together.
Soggy buns — Assembling while everything is very wet will drown the bun. Fix: toast the buns lightly and keep them warm so they stay crisp under the patty.

Dietary Swaps & Alternatives

Keep in mind the recipe’s structure: beans plus egg plus oil create the binder; the beef provides the primary texture. If you’re tweaking for diet reasons, do so in ways that preserve those roles.

Cheese preference — the recipe already notes “Gorgonzola or other mild blue cheese.” Choose a milder blue if you want less bite; keep the same weight (8 ounces) for consistent coverage.
Sodium control — reduce the kosher salt in the patty mix by half and rely on mustard and Worcestershire sparingly; the Gorgonzola is salty, so taste before adding table salt at service.
Make it mushroom-forward — use the optional sautéed mushrooms as a more earthy, lower-sodium top instead of adding extra blue cheese.
Egg-sensitive — the egg is a binder; if you need to avoid it, increase the mashed beans slightly to compensate (use the beans already listed) and handle the patties very gently when forming.

Flavor Logic

Every ingredient has a clear job. The Gorgonzola contributes creamy, salty pockets that contrast with the caramelized onion’s sweetness. Dijon mustard gives a bright, slightly vinegary backbone both inside the mix and as a surface brush — it helps form a flavorful crust when the patty sears. Worcestershire brings deep umami that makes a smaller amount of beef feel richer than it is. Black beans add moisture and body without muting the beef; they also keep the texture tender so the final burger isn’t dry despite being 90% lean.

Texture is just as important as taste here. The onion marmalade offers soft chew and glossy sweetness. Toasting the bun creates an exterior barrier so juices stay in the patty and the bun doesn’t collapse. The short broil at the end is a deliberate move: it melts the cheese fast without pushing the meat to overdone territory.

Storing Tips & Timelines

These burgers are best eaten immediately, but you can prepare components ahead.

Onion marmalade — store in an airtight container in the refrigerator for up to 5 days. It’s excellent cold or reheated gently.
Uncooked patties — shaped and separated with parchment, refrigerate for up to 24 hours. For longer storage, freeze for up to 3 months; thaw overnight in the fridge before cooking.
Cooked patties — will keep in the refrigerator for 3–4 days. Reheat gently in a skillet over medium-low to preserve moisture; a brief oven finish under the broiler can re-melt the cheese if desired, but watch closely.
Assembled burgers — avoid storing assembled burgers for later; the bun will become soggy. Assemble just before serving.

Reader Questions

Q: Can I make the onion marmalade ahead?
A: Yes. It keeps well for several days in the fridge and actually tastes better the next day as flavors meld. Warm it briefly before using if you prefer it hot.

Q: Will the black beans make the burger taste like beans?
A: Not if you mash them mostly smooth and use them as directed. They add moisture and bind without overt bean flavor, especially with the beef, Dijon, and Worcestershire in the mix.

Q: Can I skip the broiler step?
A: You can, but the broiler gives a fast, controlled burst of heat that melts the blue cheese without overcooking the meat. If you skip it, let the cheese sit on the hot patties with the skillet covered for a minute to encourage melting.

Next Steps

Make a double batch of onion marmalade — it’s great on sandwiches and roasted vegetables. If you want to scale up for a crowd, shape the patties and freeze them individually on a tray, then bag. When guests arrive, sear from frozen for a few extra minutes per side and finish under the broiler.

Serve with crisp lettuce and a simple side like oven fries or a green salad. If you keep the assembly simple — patty, marmalade, optional sautéed mushrooms on a lightly toasted bun — the layers remain distinct and the Blue Cheese Burger stays the star. Enjoy, and tweak the marmalade intensity or cheese amount to match your taste the next time; it’s a recipe that rewards small, deliberate adjustments.

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Blue Cheese Burger

Beef-and-black-bean burgers topped with melted Gorgonzola and a sweet onion marmalade. Optional sautéed mushrooms can be added when assembling.

Prep Time20

Cook Time10

Total Time30

Course: Main Course

Cuisine: American

Servings: 6 servings

Ingredients

1 large red onionthinly sliced about 2 cups
1 tablespoonextra virgin olive oil
2 teaspoonsbrown sugar
1/2 teaspoonkosher salt
2 tablespoonsbalsamic vinegar
1 canblack beans 15 ounces rinsed and drained
1 large eggbeaten
3 tablespoonsextra virgin olive oilplus extra for brushing skillet
3 tablespoonsDijon mustarddivided
2 teaspoonsgarlic powder
1 teaspoonkosher salt
1 teaspoonground black pepper
1 teaspoonWorcestershire sauce
1 pound90% lean ground beef
8 ouncesGorgonzola cheeseor other mild blue cheese crumbled
6 whole wheat hamburger bunslightly toasted
Sautéed Mushrooms

Instructions

Position an oven rack in the upper third of the oven and set the broiler to high.
Make the onion marmalade: heat 1 tablespoon extra virgin olive oil in a large skillet over medium-high. Add the thinly sliced red onion, 2 teaspoons brown sugar, and 1/2 teaspoon kosher salt. Sauté, stirring occasionally, about 15 minutes until the onions are dark golden brown and tender. Stir in 2 tablespoons balsamic vinegar and cook 2 more minutes. Transfer the marmalade to a bowl and set aside.
Rinse and drain the can of black beans. Place the beans in a large bowl and mash them until mostly broken up.
To the mashed beans add the beaten egg, 3 tablespoons extra virgin olive oil, Dijon mustard (reserve some for brushing the patties), 2 teaspoons garlic powder, 1 teaspoon kosher salt, 1 teaspoon ground black pepper, and 1 teaspoon Worcestershire sauce. Mix until evenly combined.
Add the 1 pound ground beef to the bean mixture. Gently stir with a fork just until incorporated, taking care not to overwork or compress the meat.
Divide the mixture into 6 equal portions and shape each into an approximately 3 1/2-inch-wide patty.
Brush both sides of each patty with the reserved Dijon mustard.
Brush a large ovenproof skillet with extra virgin olive oil and heat it over medium-high. Add the patties (do not overcrowd; cook in batches if necessary). Cook 3–4 minutes on the first side, until a golden crust forms.
Flip the patties, top each immediately with the crumbled Gorgonzola (8 ounces divided among the patties), and cook about 3 more minutes on the second side, or longer if you prefer a more well-done burger.
During the last moments of cooking, place the skillet under the preheated broiler for about 30 seconds to finish melting the blue cheese—watch closely to avoid burning.
Lightly toast the 6 whole wheat hamburger buns and keep them warm.
Assemble: place each patty on a toasted bun, top with a heaping spoonful of the onion marmalade (and sautéed mushrooms, if using), and serve immediately.

Equipment

Large Skillet
Ovenproof skillet
Oven Broiler
Mixing Bowl
Spatula

Notes

TO STORE: Keep leftover burgers, deconstructed, in an airtight container for up to 3 days in the fridge. Onion marmalade may be kept in a separate airtight container in the fridge for up to 5 days.
TO REHEAT: Gently warm marmalade in the microwave until heated through. Reheat the burgers in a nonstick skillet with a bit of water, covered to help them steam and not dry out. Top with blue cheese, broil to melt and then serve topped with marmalade on buns.
TO FREEZE: Cooked burger patties may be kept frozen for up to 3 months in a freezer-safe container. Let thaw overnight in the refrigerator prior to reheating.