Burger
Sandra 15 Oct 2026 Juicy beef burgers with grated butter, Swiss cheese, portobello mushroom, egg, crispy bacon and sriracha mayonnaise in a brioche bun.
- Prep
- 10 min
- Cook
- 15 min
- Total
- 25 min
- Level
- Medium
- Servings
- 2 servings
Ingredients
2 servings
2
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For the burger
500 g minced beef 85% lean, 15% fat
55 g butter frozen and grated
1 tbsp garlic powder 
1½ tbsp Maldon sea salt 
1 tbsp black pepper 
1 tbsp olive oil 
4 slices Swiss cheese
For the toppings
2 portobello mushrooms 
2 eggs - 1 tbsp olive oil
4 slices smoked bacon 
handfuls rocket to taste
1 tomato sliced
For the buns
2 brioche burger buns - butter for toasting · to taste
For the sriracha mayonnaise
60 ml mayonnaise 
2 tbsp sriracha sauce - pinches salt to taste
Method
- Prepare the grill: heat one side of the grill to medium heat and the other side to low heat.
- Mix the mince with the grated butter. Shape into two burgers measuring 10 cm in diameter and 2,5 cm thick.
- Leave the burgers to rest in the fridge for 10 minutes, then season with salt and pepper.
- Mix the mayonnaise with the sriracha and a pinch of salt.
- Brush the burgers with olive oil and grill for 2 minutes on each side.
- Grill the portobello mushrooms.
- Fry the eggs in the portobello mushrooms.
- Fry the bacon until crispy.
- Lightly toast the brioche buns and add the Swiss cheese to the burgers.
- Spread the sriracha mayonnaise over the buns, then add the rocket, tomato, bacon and burger.
- Place the portobello with the egg on top of the burger and cover with the bun.
Nutrition (per serving)
- 1624kcal
- Energy
- 79g
- Protein
- 45g
- Carbohydrates
- 125g
- Fat
Protein 20% Carbohydrates 11% Fat 69%
All nutrition values
- Calories
- 1624 kcal
- Protein
- 79.4 g
- Carbohydrates
- 45 g
- of which sugars
- 12.4 g
- Fat
- 124.5 g
- of which saturated
- 50.5 g
- Fibre
- 5.4 g
- Salt
- 11.7 g
Calculated from the ingredients.
Allergens
Contains
- Gluten
- Egg
- Milk
- Nightshades
Based on the listed ingredients. Always check product labels - brands and cross-contamination can make a difference.