Egg gratin with mashed potatoes
INGREDIENTS * 500 grams of potatoes * 100 grams of butter * 125 ml of cream * 2 leeks * 50 grams of flour * 100 ml of water * 500 ml of milk *Salt * 100 grams of cheese *Pepper * 4 eggs * A teaspoon of vegetable oil INSTRUCTIONS. 1. To make a…