Baked Chocolate Donuts

Ingredients (12)

• ✓ 2 cups all-purpose flour
• + 1 ½ cups white sugar add to pantry
• + ¼ cup unsweetened cocoa powder add to pantry
• + 2 teaspoons baking powder add to pantry
• + 1 teaspoon salt add to pantry
• + 1 ¼ cups 2% milk add to pantry
• + 1 large egg, lightly beaten add to pantry
• + 2 tablespoons butter, melted add to pantry
• ✓ 1 tablespoon vegetable oil
• + 6 teaspoons vanilla extract, divided add to pantry
• + 6 cups confectioners' sugar add to pantry
• ✓ 4 tablespoons hot water, or more as needed