Name: Irresistible Old-Fashioned Buttermilk Donut Bars Recipe
Prep time: 15 min
Cook time: 25 min
Total time: 55 min
Ingredients: 2 cups all-purpose flour (can be substituted with a gluten-free blend containing xanthan gum); 2 teaspoons baking powder (a leavening agent); 1 teaspoon baking soda; 1 teaspoon ground nutmeg (adds classic donut flavor); 1 teaspoon salt (balances sweetness); 1/2 cup unsalted butter (softened for easy mixing); 1 cup granulated sugar (or use brown sugar for deeper flavor); 2 large eggs (room temperature for better mixing); 1 teaspoon vanilla extract (or vanilla bean paste for glaze); 1 cup buttermilk (substitute with milk mixed with vinegar if needed); 2 cups powdered sugar (sweetens and thickens the glaze); 1/4 cup maple syrup (for delightful flavor)

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Sinking my teeth into a soft, warm donut bar instantly transports me to my childhood, where the kitchen filled with sweet aromas on lazy Saturday mornings. These Old-Fashioned Buttermilk Donut Bars with Brown Butter Maple Vanilla Bean Glaze are not just dessert; they symbolize comfort and joy in every bite. With quick prep time and a drizzle of indulgent glaze, you’ll find these bars make a perfect treat for brunch gatherings or a cozy afternoon at home. Plus, they’re easily adaptable to fit gluten-free diets—ensuring everyone can join in on the fun. Curious about how to whip up this delightful classic? Let’s dive into the recipe!

Why are these donut bars irresistible?

Comforting, Nostalgic Flavor: These Old-Fashioned Buttermilk Donut Bars evoke the comforting tastes of your childhood, making them a delightful treat for any occasion.
Effortlessly Easy: With simple ingredients and straightforward steps, even novice bakers can whip these up with confidence.
Versatile Variations: Feel free to get creative—add spices, nuts, or chocolate chips for a personalized twist.
Decadent Glaze: The Brown Butter Maple Vanilla Bean Glaze takes these bars to a whole new level, ensuring every bite is indulgent and fulfilling.
Perfect for Sharing: Whether it’s a family brunch or a cozy get-together, these bars are sure to make you the star of the gathering! For another delightful treat, consider trying these Rhubarb Custard Bars as a perfect pairing.

Old-Fashioned Buttermilk Donut Bars Ingredients

For the Bars

All-purpose flour – Provides structure; can be substituted with a gluten-free blend containing xanthan gum.
Baking powder – A leavening agent that helps the bars rise beautifully.
Baking soda – Enhances leavening and contributes to an airy texture.
Ground nutmeg – Adds classic donut flavor; don’t skip this for authentic taste.
Salt – Balances sweetness for a more rounded flavor profile.
Unsalted butter – Adds richness and moisture; ensure it’s softened for easy mixing.
Granulated sugar – Sweetens the bars optimally; try brown sugar for a deeper flavor.
Eggs – Provide structure and moisture; room temperature eggs mix better.
Vanilla extract – Infuses depth of flavor; swapping for vanilla bean paste enhances the glaze.
Buttermilk – Keeps the bars moist; substitute with milk mixed with vinegar if needed.

For the Glaze

Powdered sugar – Sweetens and thickens the glaze to a perfect creamy consistency.
Maple syrup – Infuses delightful flavor into the glaze, making it sweet and sticky.

These Old-Fashioned Buttermilk Donut Bars are a comforting treat that’s easy to whisk up for any gathering!

Step‑by‑Step Instructions for Old-Fashioned Buttermilk Donut Bars

Step 1: Preheat and Prepare
Start by preheating your oven to 350°F (175°C). While it heats, grease or line a 9×13-inch baking pan with parchment paper, allowing edges to hang over for easy removal later. This ensures your Old-Fashioned Buttermilk Donut Bars will bake beautifully without sticking.

Step 2: Mix Dry Ingredients
In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, ground nutmeg, and salt until thoroughly combined. This step builds a foundation for flavor and structure, so make sure there are no lumps. Set this mixture aside as you move on to the wet ingredients.

Step 3: Cream Butter and Sugar
In a large mixing bowl, beat the softened unsalted butter with granulated sugar until the mixture is light and fluffy—about 3-4 minutes. This process incorporates air into the batter, contributing to a tender texture. Add room temperature eggs one at a time, mixing well after each addition, then blend in the vanilla extract.

Step 4: Combine Wet and Dry Ingredients
Gradually add your flour mixture to the butter-sugar blend, alternating with buttermilk. Start and finish with the flour mixture, mixing gently until just combined. Be careful not to overmix, as this keeps your Old-Fashioned Buttermilk Donut Bars tender and cake-like.

Step 5: Spread and Smooth the Batter
Pour the batter into the prepared baking pan, using a spatula to spread it evenly. Gently tap the pan on the counter to release any trapped air bubbles and smooth the top to ensure even baking. Your preparation is almost complete; let’s get these bars into the oven!

Step 6: Bake the Donut Bars
Place the pan in the preheated oven and bake for 22-25 minutes. Start checking for doneness around the 22-minute mark by inserting a toothpick into the center—if it comes out clean, your bars are ready. Allow them to cool in the pan for a few minutes before transferring to a wire rack.

Step 7: Prepare the Glaze
While the donut bars cool, it’s time to make the glaze. In a saucepan, brown some butter over medium heat until it turns golden and fragrant. Quickly whisk in the powdered sugar, maple syrup, and vanilla bean paste until the mixture is smooth and velvety. Adjust the consistency with a splash of milk if needed.

Step 8: Glaze the Bars
Once the bars are completely cool, pour the warm glaze over the top, spreading it evenly with a spatula. Allow the glaze to set for 10-15 minutes before slicing the bars into rectangles. This indulgent touch elevates your Old-Fashioned Buttermilk Donut Bars to a new level of deliciousness.

Old-Fashioned Buttermilk Donut Bars Variations

Feel free to experiment with these variations to create your own spin on these delightful bars!

Spiced Delight: Add 1 teaspoon of cinnamon or cardamom to the dry ingredients for a warmer, fragrant twist. It brings a cozy warmth, perfect for fall or winter gatherings.
Nutty Crunch: Stir in 1 cup of chopped walnuts or pecans into the batter for a delicious crunch. The nutty texture pairs beautifully with the soft bars, making each bite pleasantly surprising.
Chocoholic’s Dream: Fold in 1 cup of chocolate chips for an indulgent upgrade. This addition turns your donut bars into a decadent dessert that’ll satisfy any chocolate lover!
Maple Honey Swap: Substitute maple syrup with honey for a different sweet note with a hint of floral flavor. This change gives the glaze a unique twist that enhances the overall taste.
Fruit Infusion: Add 1 cup of diced fresh berries like blueberries or raspberries to the batter. The burst of fruity flavor complements the buttery richness of the bars perfectly, making them fresh and vibrant.
Citrus Zest: Incorporate zest from 1 lemon or orange into the batter for a bright, zesty kick. The citrus notes elevate the flavor profile, making your bars sing with freshness.
Gluten-Free Option: Use a gluten-free flour blend that contains xanthan gum to make these bars gluten-free. They’ll still be rich and flavorful, allowing everyone to enjoy this tasty treat.
Drizzle Variations: Drizzle melted white chocolate or a simple chocolate ganache over the glaze for an elegant touch. This adds an extra layer of sweetness that takes these bars up a notch.

These variations inspire creativity and personal flavor, letting you make these Old-Fashioned Buttermilk Donut Bars truly your own! If you like adventurous flavors, you might also enjoy these delightful Rhubarb Custard Bars as a joyful addition to your baking repertoire.

What to Serve With Old-Fashioned Buttermilk Donut Bars

Treat yourself and your loved ones to a delightful experience by pairing these scrumptious bars with perfect accompaniments.

Fresh Berries: Bright, juicy strawberries or raspberries add a refreshing contrast, balancing the rich sweetness of the donut bars.
Greek Yogurt Parfait: Creamy yogurt layered with granola and fruit brings a creamy, tangy element, enhancing the overall breakfast experience.
Espresso or Coffee: A steaming cup of robust espresso or coffee highlights the warm flavors, making each bite feel even more indulgent.
Vanilla Ice Cream: A scoop of vanilla ice cream melts slowly over warm bars, creating a deliciously rich dessert that will impress your guests.

Picture a vibrant brunch table, where guests dive into their plates filled with these luscious donut bars paired with the freshness of berries and the creaminess of yogurt.

Maple Syrup Drizzle: For those who crave extra sweetness, drizzling warm maple syrup on top of bars elevates them to a new sugary delight.
Chai Tea: The warm spices of chai tea complement the nutmeg in the bars, delivering cozy comfort in every sip.
Zesty Lemonade: A refreshing glass of lemonade offers a bright, tangy contrast that cuts through the sweetness, making your palate dance.

With these delightful pairings, you’ll create a memorable experience around your Old-Fashioned Buttermilk Donut Bars!

Make Ahead Options

These Old-Fashioned Buttermilk Donut Bars are perfect for meal prep, allowing you to enjoy their delightful taste with minimal effort on busy mornings! You can prepare the batter up to 24 hours in advance—simply mix all the ingredients, cover the bowl tightly, and refrigerate. For the glaze, you can make it ahead as well; just store it in the fridge and reheat gently before pouring it over the bars. To maintain their irresistible texture, allow the bars to cool completely before glazing and always keep them in an airtight container to keep them fresh for up to 3 days. When you’re ready to serve, simply slice and enjoy the satisfaction of a homemade treat without the hassle!

Expert Tips for Old-Fashioned Buttermilk Donut Bars

Room Temperature Ingredients: Ensure your butter and eggs are at room temperature for a smoother batter and better texture in your Old-Fashioned Buttermilk Donut Bars.
Avoid Overmixing: Mix the batter gently just until combined to prevent your bars from becoming dense; this keeps them soft and tender.
Check for Doneness Early: Ovens can vary in temperature, so start checking for doneness a few minutes before the recommended time to ensure perfectly baked bars.
Cool the Glaze: Let the glaze cool slightly before pouring it on to avoid it running off the bars, keeping that beautiful finish intact.
Storage Tips: Store your Old-Fashioned Buttermilk Donut Bars in an airtight container to maintain freshness, ideally consuming them within three days.

Storage Tips for Old-Fashioned Buttermilk Donut Bars

Room Temperature: Store the Old-Fashioned Buttermilk Donut Bars in an airtight container at room temperature for up to 3 days to keep them fresh and delicious.
Fridge: If you’d like to prolong their life, refrigerate the bars in an airtight container for up to a week, though they may lose some of their original tenderness.
Freezer: For longer storage, wrap the bars individually in plastic wrap, then place them in a freezer-safe bag. They can be frozen for up to 3 months; simply thaw overnight in the fridge before enjoying.
Reheating: To refresh chilled or frozen bars, warm them in the microwave for 10-15 seconds, just until slightly warmed through to recapture that delightful texture.

Old-Fashioned Buttermilk Donut Bars Recipe FAQs

How do I choose the right buttermilk for the bars?
Absolutely! When selecting buttermilk, look for a fresh date on the carton and ensure it has a tangy smell—this ensures it’s still good. You can also make your own by adding 1 tablespoon of white vinegar or lemon juice to a cup of regular milk; let it sit for 5-10 minutes before using.

How should I store leftover donut bars?
To keep your Old-Fashioned Buttermilk Donut Bars at their best, store them in an airtight container at room temperature for up to 3 days. If you’d like to extend their shelf life, you can refrigerate them for up to a week, although they may lose some tenderness.

Can I freeze these donut bars? If so, how?
Absolutely! To freeze, first wrap each bar individually in plastic wrap to keep them from drying out. Then, place them in a freezer-safe bag. They’ll stay fresh for about 3 months. To enjoy, simply thaw overnight in the fridge, then warm them in the microwave for 10-15 seconds to revive that delightful texture.

What can I do if my donut bars come out too dense?
If your bars turn out dense, it may be due to overmixing the batter. Always mix just until combined, and ensure your baking powder and soda are fresh, as they play a key role in keeping the bars light. If you find they still lack fluffiness, consider adding a bit more buttermilk next time for moisture.

Are there any allergy considerations for these bars?
Yes! The recipe contains gluten, dairy, and eggs, so if you’re baking for someone with allergies, you can make a gluten-free version using a suitable flour blend. Substitute the butter with dairy-free options like coconut oil or vegan butter, and use eggs or an appropriate egg substitute based on their dietary needs.

What if I can’t find ground nutmeg?
No problem! If you don’t have ground nutmeg on hand, you can use ground cinnamon as a delightful alternative. While it will slightly change the flavor profile, it will still add warmth to your Old-Fashioned Buttermilk Donut Bars.