Cheeseburgers with Secret Sauce | AussieButcherNewLynn

Ingredients

• 600g premium beef mince
• 1/2 onion, finely chopped
• 1 garlic clove, crushed and chopped
• 1 egg, lightly whisked
• 1 toast slice wholemeal bread, crusts removed, soaked in the milk
• 2 Tbsp milk
• 1/3 cup chives, finely chopped
• 1/3 cup parsley, finely chopped
• 1/2 cup grated tasty cheddar cheese
• 2 Tbsp tomato paste
• 1 Tbsp olive oil
• 1/2 tsp Worcestershire sauce
• 8 slices cheddar cheese
• 3/4 cup mayonnaise
• 1 shallot, finely chopped
• 3 gherkins, finely chopped
• 1 garlic clove, crushed
• 1 Tbsp tomato paste
• 1 1/2 Tbsp Dijon mustard
• 4-5 white bread rolls, halved
• 4-5 leaves lettuce
• 1 red onion, thinly sliced