100 g Ground beef 100 g Ground veal 1 Onions 1 Eggs 2 tablespoon Flat parsley 1 teaspoon Tomato ketchup 5 mL balsamic vinegar 15 mL Olive oil 1 pinch Salt 1 pinch Pepper 1 garlic clove 2 potato Preheat the oven to 350 °F. Mix together the meat, finely chopped onion, egg and parsley. Add salt and pepper. Fill the mix into a loaf pan and return to the oven for 20 minutes. Meanwhile, heat a little of olive oil in a saucepan over medium heat. Add the garlic clove, let the flavour infuse the oil for 1 minute, then remove. Add tomato paste and let it simmer for 2 minutes. Add ketchup, balsamic vinegar, salt, pepper, then reduce heat. Let it simmer until the meat is cooked through. In the meantime, cook the potatoes, peel, then crush them with a little of olive oil, using a fork. Add salt and pepper. Serve tomato sauce klops along with mashed potatoes. These meatballs are as good cold as hot.