Add all the ingredients to a big bowl and mix the beef with the pork meat. Season with salt and pepper. Let it rest for 30 minutes
Divide in 5 portions of around 3 to 4 cm thick. Knead and shape the hamburgers.
Bake the hamburger slides 7 minutes per side over medium heat or on the grill
Add the ingredients you would like to have on your hamburger bun (tomato, salad, ketchup, mustard)