Beef Hamburger Recipe (Homemade Beef Patties and Easy Hamburger Sauce)

Ingredients

• 200 g Ground Beef
• 1/3 tsp Salt
• Pepper
• 50 g Onion (finely chopped)
• 3 tbsp Panko (Japanese breadcrumbs)
• 2 tbsp Milk
• Vegetable Oil
• 1 tbsp Water (to cook the meat)
• 2 tbsp Tomato Ketchup
• 2 tbsp Tonkatsu Sauce (if not available, check out the recipe notes below)
• 1-2 tsp Water
• 1 tsp Butter
• 2 Hamburger Buns
• Butter
• Whole Grain Mustard
• 2 slices Cheddar Cheese
• 2 slices Tomato (1 cm/0.4 inch thick)
• 20 g Red Onion (thinly sliced)
• 1 Pickled Cucumber (chopped)
• 2-3 Loose Leaf Lettuce Leaves