Boston Cream Doughnuts
Yeast Doughnuts2 packets (. 25 oz) active dry yeast1/4 cup slightly warm water (100°F)1 1/4 cups milk, room temperature3 large eggs, room temperature1/2 cup Imperial Sugar Extra Fine Granulated Sugar6 tablespoons unsalted butter, soft1 tablespoon vanilla extract5 1/2 cups all-purpose flour*2 teaspoons salt12 cups corn oil (for frying)Cream Filling4 egg yolks1 cup Imperial Sugar Extra Fine Granulated Sugar4 tablespoons cornstarch2 cups milk2 tablespoons unsalted butter2 teaspoons vanilla extractChocolate Glaze1 1/2 cups Imperial Sugar Confectioners Powdered Sugar3 tablespoons cocoa powder1/2 teaspoon salt3-4 tablespoons water*Spoon