Fastelavnsboller (Fastelavn Buns)

Details

Ingredients

• 3 (0.6 ounce) cakes compressed fresh yeast
• 1 cup warm milk (110 degrees F/45 degrees C)
• ½ cup melted butter
• 2 eggs
• 1 ½ teaspoons salt
• 2 teaspoons white sugar
• 4 cups all-purpose flour, or as needed
• 1 cup milk
• 1 tablespoon cornstarch
• 2 eggs
• 2 tablespoons white sugar
• 1 teaspoon vanilla extract
• 1 beaten egg
• ¾ cup confectioners' sugar
• 1 tablespoon hot water
• 2 tablespoons cocoa powder