Homemade glazed doughnuts that are incredibly fluffy

3 teaspoons active dry yeast or 2 1/4 teaspoons instant yeast • 1 cup whole milk, heated to 110°F (43°C) • 2 to 2 1/2 cups bread flour, plus more for the work surface _ 2 tablespoons superfine sugar, (or just blitz granulated sugar in a blender until finely ground but not powdery) • 1/2 teaspoon salt • 1 teaspoon vanilla extract • 3 large egg yolks • 4 tablespoons unsalted butter, at rool temperature Oil for frying FOR THE BASIC GLAZE • 11/2 cups confectioners' sugar, sifted to remove any lumps L 3 to 4 tablespoons milk or water _ 2 teaspoons vanilla extract, (optional) FOR THE CHOCOLATE GLAZE • 11/2 cups confectioners' sugar • 4 tablespoons cocoa powder • 2 tablespoons milk or water 2 teaspoons vanilla extract, (optional) #food #asmr #bakingfromscratch #bakingtips #bakingingredient