Cheeseburger recipe with homemade ketchup | Mutti Recipe

Ingredients

• 1 tbsp olive oil
• 1 brown onion (diced)
• 2 x 400g tin Mutti Peeled Tomatoes
• 1 tbsp Mutti Double Concentrate Tomato Paste
• 80 g brown sugar
• 120 ml white vinegar
• 1/2 tsp ground cinnamon
• 1/4 tsp celery salt
• 1/4 tsp all spice
• 1 tsp sea salt
• 1 tsp ground black pepper
• 500 g beef mince
• 1 small brown onion (diced)
• spray oil
• 4 slices Swiss Cheese
• 4 leaves lettuce
• 4 sweet spiced gherkins (thinly sliced lengthways)
• 4 tbsp whole egg mayonnaise
• 4 brioche burger buns