This video shows a recipe for transforming donuts into a bomboloni style treat by filling them with plenty of custard cream. First, warm the milk, then mix egg yolks with sugar and cake flour, combine with the warmed milk, and cook in a saucepan to make custard cream. Mix the chilled custard with vanilla extract and whipped cream, and put it into a piping bag. Pierce holes in the fried and sugar-coated donuts, and fill them generously with the cream to finish. The fluffy donuts and rich cream are irresistible, making this a perfect dessert for your home café.