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Buttermilk Donut Bundt Cake on a white platter
5 from 4 votes

Buttermilk Glazed Donut Bundt Cake

I think it’s safe to say that this Buttermilk Glazed Donut Bundt Cake will soon be on your favorite dessert list.
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  • 1 cup salted butter softened
  • 2 cups granulated sugar
  • 4 eggs
  • 2 1/2 teaspoons vanilla extract
  • 2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon freshly ground nutmeg 1/2 teaspoon if not fresh
  • 3.5 cups all-purpose flour
  • 1 cup buttermilk
  • 1/2 cup sour cream

Glaze Ingredients

  • 1 cup powdered sugar
  • 2-3 tablespoons water


  • Preheat oven to 350 degrees. Spray a bundt pan (the less ornate the better; I used an angel food cake bundt pan) with non-stick cooking spray and set aside.
  • In a small bowl, whisk together flour, baking powder, baking soda, salt, and nutmeg. Set aside.
  • In a large bowl, use a stand mixer or hand mixer to cream together butter and sugar very well.
  • Add sour cream and vanilla extract and mix well.
  • Beat in 1 egg at a time, mixing for 30 seconds or so in between each egg to produce a nice, fluffy batter.
  • Add 1/3 of the flour mixture to the batter, then 1/2 of the buttermilk. Continue rotating flour and buttermilk additions until all ingredients are combined. When adding the flour mixture and the buttermilk, only mix until the ingredients are just incorporated - do not over mix.
  • Transfer the batter to prepared bundt pan. Bake for 50-60 minutes or until a toothpick in the center of the cake comes out clean. Remove from oven and cool.
  • While the cake is cooling, prepare the glaze.


  • Add 2 tablespoons of water to the powdered sugar and stir until a paste forms. Continue stirring, adding just a few drops of water at a time, until you have a glaze that is spreadable.Remove cake from bundt pan and transfer to serving platter.
  • Use a pastry brush to brush glaze over the top and sides of the cake. Repeat layers of glaze to ensure there is a nice old-fashioned glazed donut appearance of glaze in all the nooks and crannies.Allow the glaze to set for 10-15 minutes to take on a matte appearance and dry to the touch.

Nutrition Information:

Calories: 328kcal (16%)Carbohydrates: 49g (16%)Protein: 5g (10%)Fat: 13g (20%)Saturated Fat: 8g (40%)Trans Fat: 1gCholesterol: 72mg (24%)Sodium: 219mg (9%)Potassium: 121mg (3%)Fiber: 1g (4%)Sugar: 30g (33%)Vitamin A: 416IU (8%)Vitamin C: 1mg (1%)Calcium: 56mg (6%)Iron: 1mg (6%)