Before starting this Canelés recipe, make sure you have organised all the necessary ingredients. Heat 750 grams of milk with the butter. When the butter has totally melted... ... add the remaining 250 grams of milk. Set aside. In a separate bowl, combine the castor sugar and flour. Pour 3/4 of the milk and butter preparation over the flour and sugar. Combine vigorously with a whisk until there are no more lumps, then combine gently without incorporating any air. ...