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Home » Recipe Index » Irresistible Old-Fashioned Buttermilk Donut Bars Recipe
Old-Fashioned Buttermilk Donut Bars

Irresistible Old-Fashioned Buttermilk Donut Bars Recipe

March 30, 2026 by Élodie Morel

Old-Fashioned Buttermilk Donut Bars

There’s something so nostalgic about the scent of freshly baked donuts wafting through the kitchen. I remember my grandmother’s cozy kitchen, flour dusting the air as she rolled and cut dough with love, transforming simple ingredients into delightful treats. Those homemade buttermilk donuts were always a hit, sprinkled with sugar or dipped in glaze. Today, I want to share a recipe that captures that same warmth but with a fun twist—Old-Fashioned Buttermilk Donut Bars! It’s a perfect blend of simplicity and taste that brings back all those delicious memories.

These donut bars are fluffy, tender, and imbued with that irresistible buttermilk flavor that just cannot be overlooked. Plus, they’re so easy to make! You can whip them up for a weekend brunch, treat your kids after school, or indulge yourself on a quiet Sunday morning with a cup of coffee. Let’s dive into the cozy world of these delightful bars!

Why You’ll Love This Recipe

  • Quick and easy to prepare for any occasion.
  • Perfect texture—crispy on the outside, soft and airy inside.
  • Versatile—enjoy plain, glazed, or topped with your favorite sprinkles.
  • Classic flavors that bring comfort and joy.
  • Gives you a sense of nostalgia with every bite!

Ingredients

Let’s gather our ingredients! You can find most of these in your pantry, so no need for a special trip to the grocery store. Here’s what you’ll need:

  • 2 cups all-purpose flour
  • 1 cup granulated sugar
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • ½ teaspoon ground nutmeg (adds that warm, cozy flavor)
  • ½ cup buttermilk (room temperature for better mixing)
  • 2 large eggs (also at room temperature)
  • ¼ cup unsalted butter, melted (make sure it’s just slightly cooled)
  • 1 tablespoon vanilla extract
  • Optional: powdered sugar or glaze for topping

Step-by-Step Instructions

Let’s get to the fun part—the baking! Follow these steps, and I promise you’ll have a batch of luscious buttermilk donut bars in no time:

  1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan with a bit of butter or non-stick spray.
  2. In a large mixing bowl, whisk together the flour, sugar, baking soda, baking powder, salt, and nutmeg. It’s important to combine the dry ingredients well to ensure there are no lumps.
  3. In another bowl, whisk together the buttermilk, eggs, melted butter, and vanilla extract until smooth. This mixture should be creamy and inviting!
  4. Pour the wet ingredients into the dry ingredients. Gently fold them together until just combined—don’t overmix! A few lumps are totally fine; we want those bars to stay light and fluffy.
  5. Pour the batter into the greased baking pan, spreading it evenly using a spatula.
  6. Bake for 20–25 minutes, or until a toothpick inserted in the center comes out clean. The edges should be lightly golden and the aroma will fill your kitchen with delight!
  7. Once baked, allow the bars to cool in the pan for about 10 minutes, then transfer them to a wire rack to cool completely. If you can resist, let them cool completely before glazing or dusting with powdered sugar!

Pro Tips & Variations

These buttermilk donut bars are so versatile! Here are some fun twist ideas and tips to make them your own:

  • Add spices: A pinch of cinnamon can complement the nutmeg beautifully!
  • Top it your way: Drizzle with a simple glaze made from powdered sugar and milk, or sprinkle them with colorful sprinkles for a festive touch.
  • Try alternative milks: If you don’t have buttermilk, you can substitute it with regular milk mixed with a tablespoon of vinegar or lemon juice.
  • Make them mini: Use a muffin tin for smaller, bite-sized donut bars.
  • Don’t forget the chocolate: Feel free to dip your bars in melted chocolate for an extra-luxurious treat!

Serving Suggestions

How do you enjoy these delicious bars? Picture this: you wake up on a Saturday morning, the sun is streaming through your kitchen window, and you pour yourself a steaming cup of coffee. Slice a piece of your freshly baked buttermilk donut bar, and if you like, drizzle it with a homemade glaze or a dusting of powdered sugar.

They’re perfect for brunch gatherings too! Serve them alongside fresh fruit, yogurt, or even a light salad for a delightful contrast. If you have kids, they’ll love these as an after-school snack—especially if there are sprinkles involved!

Storage Tips

Now, let’s talk about how to keep those delicious bars fresh for as long as possible:

  • Room temperature: If you plan to eat them within a couple of days, store them in an airtight container at room temperature. They will stay soft and tasty!
  • Refrigerate: For longer storage, pop them in the fridge. They can last up to a week this way, but be sure to let them come to room temperature before enjoying, as the cold can change their texture.
  • Freeze: If you want to enjoy these bars later, wrap them tightly in plastic wrap and then place them in a freezer-safe bag. They can last up to three months! Just thaw them overnight in the fridge before serving.

FAQs

Can I use whole milk instead of buttermilk?

You can definitely substitute whole milk! If you don’t have buttermilk on hand, just mix 1 cup of milk with a tablespoon of lemon juice or vinegar and let it sit for 5–10 minutes before using. This will give you a homemade buttermilk substitute!

How can I tell when the donut bars are done baking?

The best way to check is by inserting a toothpick into the center of the bars. If it comes out clean or with just a few crumbs attached, they’re ready to come out of the oven. You’ll also notice that the edges should be golden-brown.

Can I add chocolate chips to the batter?

Absolutely! Chocolate chips would be a delightful addition. Just fold in about a cup of semi-sweet or dark chocolate chips into the batter before pouring it into the pan to add an extra layer of decadence.

What’s the best way to reheat leftover bars?

If you’re enjoying them the next day, you can pop them in the microwave for about 10-15 seconds to warm them up. This will refresh them nicely! Or, enjoy them cold—they’re scrumptious either way!

Can I make these vegan?

You can swap the eggs for a flax egg (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water) and use non-dairy milk to create a vegan-friendly version. Just be sure to adjust the baking time slightly, as vegan batters can behave a bit differently.

Conclusion

Creating these Old-Fashioned Buttermilk Donut Bars in your own kitchen is such a rewarding experience. The joy of mixing together simple ingredients, feeling the warmth of the oven, and then tasting that first sweet bite is pure magic. I hope this recipe brings you as much joy as it has given me. Please leave a comment below to share your thoughts or any variations you tried—I’d love to hear how your baking adventure turned out! Happy baking, my friend!

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Old-Fashioned Buttermilk Donut Bars

Old-Fashioned Buttermilk Donut Bars


  • Author: meryem
  • Total Time: 40 minutes
  • Yield: 12 bars 1x
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Description

Savor delicious old-fashioned buttermilk donut bars with this easy recipe. Perfectly sweetened, these treats are a must-try for donut lovers!


Ingredients

Scale
  • 2 cups all-purpose flour
  • 1 cup granulated sugar
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • ½ teaspoon ground nutmeg
  • ½ cup buttermilk
  • 2 large eggs
  • ¼ cup unsalted butter, melted
  • 1 tablespoon vanilla extract
  • Optional: powdered sugar or glaze for topping

  • Instructions

  • Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan.
  • In a large mixing bowl, whisk together the flour, sugar, baking soda, baking powder, salt, and nutmeg.
  • In another bowl, whisk together the buttermilk, eggs, melted butter, and vanilla extract until smooth.
  • Pour the wet ingredients into the dry ingredients and gently fold until just combined. Do not overmix.
  • Pour the batter into the greased baking pan, spreading it evenly.
  • Bake for 20–25 minutes or until a toothpick inserted in the center comes out clean.
  • Allow the bars to cool in the pan for about 10 minutes, then transfer them to a wire rack to cool completely.
  • Notes

    Enjoy the nostalgia of freshly baked donuts with these Old-Fashioned Buttermilk Donut Bars, perfect for any occasion and easy to make.

    • Prep Time: 15 minutes
    • Cook Time: 25 minutes
    • Category: Dessert
    • Cuisine: American

    Nutrition

    • Serving Size: 12 bars
    • Calories: 180
    • Sugar: 12g
    • Fat: 7g
    • Carbohydrates: 28g
    • Fiber: 0g
    • Protein: 3g

    Keywords: donut bars, buttermilk recipe, dessert, easy baking, nostalgia

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