The Brazilian X-Burger is a beef cheeseburger topped with a fried egg — the “X” comes from how Brazilians pronounce the word “cheese.” It takes about 35 minutes start to finish and uses ingredients most people already have on hand. The runny yolk acts as a built-in sauce, which means you get a juicy, satisfying burger without any extra condiments.
Substitutions that actually work
- Ground beef: Any 80/20 ground beef works fine. Grass-fed is listed in the recipe but not required — the Worcestershire sauce does the heavy lifting on flavor regardless.
- Cheddar cheese: Aged cheddar is ideal for sharpness, but regular mild cheddar, Colby-Jack, or even American cheese all melt well. Avoid pre-shredded bags if you can; the anti-caking coating slows melting.
- Brioche or potato buns: Any soft burger bun works. A standard supermarket sesame bun is fine. Avoid sourdough or ciabatta — they’re too dense and the yolk soaks through the bottom.
- Worcestershire sauce: Out of Worcestershire? Use an equal amount of soy sauce plus a small splash of apple cider vinegar. It won’t be identical but it covers the savory depth.
- Fresh tomato and lettuce: Swap in whatever you have — sliced dill pickles, thinly sliced red onion, or a handful of arugula all work as fresh contrast to the rich egg and cheese.
Why this recipe works
Two things make this burger actually come together. First, forming the patties slightly wider than the bun accounts for the shrinkage that happens when the proteins tighten up over heat — skip this step and you end up with a puck that barely covers the bread. Second, covering the pan after you flip the patty traps steam, which melts the cheese evenly and finishes the center without drying out the outside. That lid is doing real work. The fried egg goes in a separate pan at the same time so everything lands hot at once — trying to do it all in one pan just means something gets cold while you wait.
Mistakes to avoid
- Pressing the patty while it cooks: It squeezes out the fat and juice. Leave it alone after you place it in the pan.
- Skipping the thermometer: Ground beef needs to hit 160°F (71°C) internal temperature. The 3-4 minute flip timing in the recipe is a guide, not a guarantee — pan temperature, patty thickness, and starting meat temperature all vary. Check with an instant-read thermometer.
- Cooking the egg on high heat: High heat turns the whites rubbery and browns the edges before the yolk has a chance to set properly. Medium-low heat gives you set whites with a still-runny yolk.
- Assembling too early: Putting the egg on the patty before you’re ready to serve lets the yolk cook through from the residual heat. Assemble and eat immediately.
- Over-mixing the beef: Combine the Worcestershire, salt, and pepper with the beef just until incorporated — skip the egg in the mix, it makes the patty mushy. A light hand keeps the texture loose and the patty tender.
Storage and reheating
Store cooked patties and fried eggs separately in airtight containers in the fridge for up to 3 days. Reheat patties in a covered skillet over medium-low heat with a splash of water for about 2 minutes per side — this keeps them from drying out. Fried eggs don’t reheat well; fry a fresh one, it takes 3 minutes. Cooked patties can be frozen for up to 2 months wrapped tightly in plastic wrap and then foil; thaw overnight in the fridge before reheating. Don’t assemble and store a built burger — the bun turns soggy and the egg yolk loses its texture entirely.
Brazilian X-Burger (Cheese and Egg Burger)
Ingredients
- 500 grams ground beef Preferably grass-fed for a richer flavor
- 1 tablespoon Worcestershire sauce Adds depth to the patties
- 4 slices cheddar cheese Aged if possible for a sharp taste
- 4 large eggs Free-range for a brighter yolk
- 4 medium burger buns Soft brioche or potato buns recommended
- 1 large tomato Sliced
- 1 large lettuce head Fresh, washed
- 1 pinch salt Freshly ground
- 1 pinch ground black pepper Freshly ground
Instructions
- In a medium bowl, gently mix the ground beef with Worcestershire sauce, salt, and pepper. Divide into four equal portions and form into patties slightly wider than the buns to allow for shrinkage during cooking.
- Preheat a non-stick skillet or grill to medium-high heat. Cook each patty for 4-5 minutes on one side until a crust forms, then flip and add a slice of cheddar cheese. Cover with a lid to melt cheese and cook for an additional 3-4 minutes, until cooked to your preference.
- In another non-stick pan, crack the eggs and cook until whites are set but yolk remains runny. Season with a pinch of salt.
- Toast the burger buns lightly on the grill or in the oven to enhance flavor and texture.
- Assemble the burgers by placing lettuce and a slice of tomato on the bottom bun. Add the beef patty with melted cheese, top with a fried egg, and cap with the top bun.
Notes
Nutrition
Your questions, answered
Can I use a different cheese instead of cheddar?
Yes — any cheese that melts smoothly works here. Colby-Jack, Monterey Jack, provolone, and American cheese are all solid options. Just avoid anything too hard or dry, like Parmesan or aged Manchego, since they won’t melt properly over the patty.
Does the egg yolk have to be runny, or can I cook it through?
You can cook it however you like. A runny yolk adds richness and acts as a natural sauce, but a fully set yolk is perfectly fine if that’s your preference or a food safety concern. Just cook over medium-low heat either way to avoid rubbery whites.
How do I know when the patty is cooked through without cutting it open?
Use an instant-read thermometer — ground beef is safe at 160°F (71°C) internal temperature. Insert it sideways through the edge of the patty to reach the center for an accurate reading.
Can I make the patties ahead of time?
Yes, you can form the patties up to 24 hours in advance and keep them covered in the fridge. Stack them with a small piece of parchment or wax paper between each one so they don’t stick together.
What if I don’t have brioche or potato buns?
Any standard soft burger bun from the supermarket works fine. The main thing to avoid is a bun that’s too thick or crusty — it makes the burger hard to eat and the yolk won’t absorb into it the way it should.