Ingredients: 0.8 litres of full fat milk, 4 egg yolks, 200 g of sugar, 100 g of wheat starch, lemon peel, a pinch of vanilla. Preparation: Mix the sugar, starch and vanilla together, add the eggs, milk, lemon rind and bring to boil, making sure it does not stick to the bottom of the pan. Cool down, fill the wafer.