Homemade grilled burgers

Ingredients

• 1 kg ground beef
• 2 medium onions (300 g)
• 1 teaspoon sea salt
• 1/2 teaspoon ground pepper
• 1 teaspoon sweet paprika
• 1/4 teaspoon chili powder (optional)
• 120 g sliced pickles
• 2 medium tomatoes (300 g)
• 1 tablespoon olive oil
• 1 tablespoon balsamic vinegar
• 1/4 teaspoon sea salt
• 1/8 teaspoon ground pepper
• 2 garlic cloves
• 160 g semi-hard cheese
• 8 hamburger buns
• 40 g mustard
• 120 g ketchup (optional)
• 120 g mayonnaise (optional)

Preparation

1. Put the ground beef on your work surface. Add one finely chopped onion, 1 teaspoon sea salt, 1/2 teaspoon pepper and the sweet paprika. Knead until the seasonings are spread through the meat. 2. Transfer the mixture to a bowl and leave it in the fridge for 20 minutes. 3. Slice the pickles. Dice the tomatoes and mix them with the olive oil, balsamic vinegar, 1/4 teaspoon salt, 1/8 teaspoon pepper and chopped garlic. 4. Cut the cheese into 8 not-too-thick slices. Cut the other onion into thin rings and grill them for 2 minutes on each side. Set aside. 5. Take the meat out of the fridge and divide it into 8 balls. Flatten them with your palm and score each patty with a knife. 6. Heat the grill well and cook the patties for about 4 minutes on each side, until browned and cooked through in the center. 7. Cut the buns open and spread them with mustard. Put a slice of onion, a patty, some pickles and a slice of cheese in each one. Add a spoonful of the tomato mixture; add ketchup and mayonnaise if you like.