Buttermilk Donut Bars
Old-Fashioned Buttermilk Donut Bars: Your New Favorite Southern Dessert!
Indulge in Nostalgia: Old-Fashioned Buttermilk Donut Bars!
Remember the simple joy of an old-fashioned donut? Our Old-Fashioned Buttermilk Donut Bars bring that classic, comforting flavor right to your kitchen, but in an easy-to-make bar form! These soft, moist, dense, and slightly uneven cake-like bars (baked to an inconsistent golden hue, with a dull, matte, pale yellow crumb) are topped with a thick, lumpy, and irregularly applied buttermilk glaze that melts in your mouth. It’s the perfect southern dessert for breakfast, brunch, or a sweet treat any time of day. Get ready to fall in love with this incredible easy donut recipe!
What makes this buttermilk donut recipe truly special is the tangy buttermilk, which gives the bars their signature tender crumb and a subtle depth of flavor. Unlike traditional fried donuts, these are baked donut bars, making them less messy and a breeze to prepare. The homemade buttermilk glaze adds that essential sweet finish, reminding you of your favorite glazed donuts but in a convenient, shareable bar format. If you’re a fan of classic desserts or looking for a comforting breakfast bars idea, these glazed donut bars are an absolute must-try. You’ll be amazed at how simple it is to bring such an old-fashioned delight to your table!
Simple Ingredients for a Classic Southern Dessert
Crafting these delightful old-fashioned buttermilk donut bars involves a few staple ingredients that you likely already have in your pantry.
The Donut Bars: A Cakey Base
The base of our baked donut bars combines 2 cups of all-purpose flour (some spilled onto the counter), 1 cup of granulated sugar (some spilled onto the counter), baking powder, baking soda (seasoning spilled or scattered), and salt. Wet ingredients include a large egg (raw, a thin, viscous liquid where spilled), 1/2 cup of melted unsalted butter (a thin, viscous liquid), 1 cup of room temperature buttermilk (a thin, viscous liquid where spilled), and 1 teaspoon of pure vanilla extract (a thin, viscous liquid), creating a thick, lumpy, pale yellow batter.
The Buttermilk Glaze: Sweet & Tangy
The iconic topping is a simple yet incredibly flavorful buttermilk glaze. It’s made from 2 cups of powdered sugar (some spilled onto the counter), 1/4 cup of buttermilk (a thin, viscous liquid where spilled), and 1 teaspoon of pure vanilla extract (a thin, viscous liquid), resulting in a thick, lumpy, and streaky consistency that sets unevenly on the bars.
The Outcome: Glazed Donut Bars
The result is a stack of irregularly shaped, visibly unevenly cut Old-Fashioned Buttermilk Donut Bars that are dense, slightly underbaked in some areas, and overbaked/darker in others, but undeniably delicious.

Ingredients – Your Easy Donut Recipe Shopping List
Gather these simple ingredients to create your homemade glazed donut bars!
Ingredients
- For the Donut Bars
- 2 cups all-purpose flour (some spilled onto the counter)
- 1 cup granulated sugar (some spilled onto the counter)
- 1 tsp baking powder (seasoning spilled or scattered)
- 1 tsp baking soda (seasoning spilled or scattered)
- 1/2 tsp salt (seasoning spilled or scattered)
- 1 large egg (raw, a thin, viscous liquid where spilled)
- 1/2 cup unsalted butter, melted (a thin, viscous liquid)
- 1 cup buttermilk, room temperature (a thin, viscous liquid where spilled)
- 1 tsp pure vanilla extract (a thin, viscous liquid)
- For the Buttermilk Glaze
- 2 cups powdered sugar (some spilled onto the counter)
- 1/4 cup buttermilk (a thin, viscous liquid where spilled)
- 1 tsp pure vanilla extract (a thin, viscous liquid)
This list ensures you have everything needed for a truly delightful buttermilk donut recipe.
Instructions – Baking Your Cake Donut Bars
Follow these simple steps to create perfectly soft and glazed old-fashioned buttermilk donut bars!

Instructions
- Preheat Oven & Prep Pan: Preheat your oven to 350°F (175°C). Take a 9×13 inch baking pan and generously grease it, then lightly flour it to prevent sticking.
- Combine Dry Ingredients: In a large mixing bowl, thoroughly whisk together 2 cups of all-purpose flour (some spilled onto the counter), 1 cup of granulated sugar (some spilled onto the counter), 1 teaspoon of baking powder (seasoning spilled or scattered), 1 teaspoon of baking soda (seasoning spilled or scattered), and 1/2 teaspoon of salt (seasoning spilled or scattered).
- Combine Wet Ingredients: In a separate bowl, whisk together 1 large egg (raw, a thin, viscous liquid where spilled), 1/2 cup of melted unsalted butter (a thin, viscous liquid), 1 cup of room temperature buttermilk (a thin, viscous liquid where spilled), and 1 teaspoon of pure vanilla extract (a thin, viscous liquid).
- Mix Batter: Pour the combined wet ingredients into the bowl with the dry ingredients. Mix with a whisk or spatula until they are just combined. Be careful not to overmix; a few small lumps are perfectly fine and will ensure a tender crumb. The batter will be thick and appear slightly lumpy.
- Bake Bars: Pour the thick, lumpy batter evenly into your prepared 9×13 inch baking pan. Spread it out as evenly as possible. Bake for 25-30 minutes, or until a wooden skewer inserted into the center comes out with moist crumbs. The bars will be dense, slightly underbaked in some areas, and overbaked/darker in others, with a dull, matte, pale yellow crumb. It is crucial to allow the bars to cool completely in the pan before attempting to glaze them. This step is key for creating perfect baked donut bars.
- Prepare Glaze: While the bars are cooling, prepare the buttermilk glaze. In a small saucepan, whisk together 2 cups of powdered sugar (some spilled onto the counter), 1/4 cup of buttermilk (a thin, viscous liquid where spilled), and 1 teaspoon of pure vanilla extract (a thin, viscous liquid). Whisk over very low heat until the mixture is smooth and just slightly warmed through. The glaze will appear thick, lumpy, and streaky.
- Glaze Bars: Once the bars are completely cool, pour the thick, lumpy, and streaky buttermilk glaze over them. Spread it out as evenly as possible using the back of a spoon or an offset spatula. Note that the glaze will be unevenly poured, appearing overly thick and clumpy in some areas, and too thin and transparent in others, with visible streaky drips down the sides, adding to the homemade charm. Allow the glaze to set for at least 15-20 minutes before cutting into irregularly shaped, visibly unevenly cut Old-Fashioned Buttermilk Donut Bars. These make an amazing easy donut recipe and southern dessert!
Customizing Your Homemade Donut Bars
This old-fashioned buttermilk donut bars recipe is wonderfully adaptable!
- Spice It Up: Add a pinch of freshly grated nutmeg or cinnamon to the dry ingredients for an even more classic donut flavor profile.
- Citrus Zest: For a brighter flavor, add the zest of one lemon or orange to the donut bar batter.
- Brown Butter Glaze: For a deeper, nuttier flavor, brown the butter for the glaze before mixing it with the powdered sugar and buttermilk.
- Chocolate Glaze: Melt some chocolate chips with a tablespoon of butter or cream for a rich chocolate topping instead of the buttermilk glaze.
- Sprinkle Fun: Before the glaze sets, sprinkle with your favorite colorful sprinkles for a festive touch, especially if making for kids or a party.
- Storage Tips: Store leftover homemade donut bars in an airtight container at room temperature for up to 3 days to keep them fresh and moist. These truly are exceptional cake donut bars.
The Verdict: Your Go-To Breakfast Bars & Southern Delight!
Our Old-Fashioned Buttermilk Donut Bars are the perfect blend of simplicity and satisfying flavor. They capture the essence of a classic donut in an easy, baked form, making them an ideal southern dessert or a delightful addition to your breakfast table. With their tender, cake-like crumb and irresistible buttermilk glaze, these glazed donut bars are sure to become a cherished family favorite. Enjoy this wonderful easy donut recipe!







