Old-Fashioned Buttermilk Donut Bars with Brown Butter Maple Vanilla Bean Glaze Recipe
These Old-Fashioned Buttermilk Donut Bars are a nostalgic treat featuring a tender, moist cake base flavored with warm nutmeg and buttermilk. Topped with a luscious brown butter maple vanilla bean glaze, these bars combine rich, comforting flavors perfect for breakfast or dessert. Easy to make in a single 9×13-inch pan, they bake to golden perfection and are finished with a sweet, glossy glaze that adds a decadent touch.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: 12 to 16 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Scale
For the Donut Bars
- 2 ½ cups all-purpose flour
- 2 tsp baking powder
- 1 tsp baking soda
- ½ tsp ground nutmeg
- ½ tsp salt
- ½ cup unsalted butter, softened
- ¾ cup granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- ¾ cup buttermilk
For the Brown Butter Maple Vanilla Bean Glaze
- ½ cup unsalted butter (for glaze)
- 1 ½ cups powdered sugar
- 2 tbsp pure maple syrup
- 1 tsp vanilla bean paste (or vanilla extract)
- 1–2 tbsp milk (for thinning, as needed)
Instructions
- Preheat and prepare pan: Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan to prevent sticking.
- Mix dry ingredients: In a medium bowl, whisk together all-purpose flour, baking powder, baking soda, ground nutmeg, and salt to ensure even distribution.
- Cream butter and sugar: In a large mixing bowl, beat the softened butter and granulated sugar together until light and fluffy, which helps incorporate air for a tender texture.
- Add eggs and vanilla: Add the eggs one at a time to the creamed mixture, beating well after each addition, then mix in the vanilla extract until combined.
- Combine wet and dry ingredients: Alternately add the dry flour mixture and buttermilk to the creamed mixture, starting and ending with the dry ingredients, stirring just until combined to avoid overmixing.
- Bake the batter: Spread the batter evenly into the prepared pan and bake for 22-25 minutes, or until a toothpick inserted in the center comes out clean. Then, cool the bars completely before glazing.
- Prepare glaze: Melt the butter in a saucepan over medium heat, cooking until it turns golden brown and emits a nutty aroma. Remove from heat and whisk in powdered sugar, maple syrup, and vanilla bean paste until smooth. Thin the glaze with 1–2 tablespoons of milk if needed for a pourable consistency.
- Glaze and set: Pour the brown butter maple vanilla bean glaze evenly over the cooled bars. Allow the glaze to set before slicing into bars for serving.
Notes
- Be careful not to over-bake the bars to keep them moist and tender.
- Ensure the bars are completely cooled before glazing to prevent the glaze from melting off.
- For a stronger vanilla flavor, use vanilla bean paste rather than extract.
- The nutmeg adds a warm spice note but can be omitted if preferred.
- Use real maple syrup for the glaze to enhance flavor authenticity.
Keywords: old-fashioned, buttermilk donut bars, brown butter glaze, maple vanilla glaze, baked donut bars, nutmeg, breakfast bars, easy dessert
