Mix the grated potatoes with half of a cubed onion, 3 eggs, the tablespoons of flour and the grated cheese until you get a soft dough. Add salt and pepper to taste and let it rest for 3 minutes.
Then make ball shapes with your hands, and crush them down, until you get circles 3 inch diameter and ½ inch thick.
Heat a pan on high heat and add some olive oil drops.
Fry for 1 or 2 minutes for both sides. Now you can serve them like an appetizer or with butter, and the avocado dip.
Avocado dip:
Mix the avocado, the yogurth, the garlic clove, the mayonnaise and the squeeze of a lemon in a bowl.
Pour it in a food processor and add salt and black pepper to taste.
Then, grind it again and pour the mixture into a small bowl.