Embark on a delightful journey to Portugal with our "Portuguese Custard Donuts" – Bolas de Berlim. These pillowy, golden donuts are generously filled with a velvety custard that oozes with every bite. A light dusting of powdered sugar adds a touch of sweetness to this heavenly dessert, making it a true celebration of Portuguese pastry craftsmanship.
In a bowl, dissolve yeast in warm milk. Add sugar, eggs, butter, salt, and flour. Knead until a smooth dough forms. Let it rise until doubled in size.
In a saucepan, heat milk until simmering. In a bowl, whisk sugar, cornstarch, and egg yolks. Slowly add hot milk, whisking continuously. Return to the saucepan, cook until thickened, and stir in vanilla. Cool.
Roll out dough and cut into rounds. Allow rounds to rise. Fry until golden. Inject custard into each donut using a piping bag.
Generously dust the custard-filled donuts with powdered sugar.
Serve the Bolas de Berlim warm and enjoy the heavenly combination of golden dough and luscious custard.