Homemade Blueberry Cake Donuts

Baked in the oven for a tender, moist crumb, these Blueberry Cake Donuts are a beautiful alternative to heavy, deep-fried treats. There is something truly special about the way the sweet, tart blueberries burst during the baking process, infusing every bite of the purple-hued batter with fresh fruit flavor. When topped with a vibrant berry glaze, these donuts look like they belong in a high-end boutique bakery, but they are secretly one of the easiest breakfast wins in my repertoire.

I love bringing these to the table for a slow Saturday morning brunch. The kitchen fills with the scent of warm vanilla and cooked berries, and the striking color of the donuts—both inside and out—never fails to delight the kids. They are soft, cakey, and just sweet enough to feel like a treat without being overwhelming. Whether you’re a seasoned baker or just looking for a fun new project for your donut pan, this recipe is a guaranteed hit that proves the best donuts don’t always come from a fryer.

Why You’ll Love It

• Oven-Baked Goodness: Skip the messy oil and deep-frying; these donuts bake up perfectly in about 10 minutes in a standard donut pan.
• Double the Blueberry: Between the fresh berries in the batter and the concentrated juice in the glaze, you get a powerful punch of fruit in every mouthful.
• Naturally Vibrant: The stunning purple and blue hues come entirely from the fruit, making these a beautiful, dye-free option for parties or showers.
• Tender Cake Texture: Unlike yeasted donuts, these have a dense, moist crumb similar to a premium muffin or pound cake.
• Easily Adaptable: You can use fresh or frozen blueberries, making this a great year-round recipe for whenever the craving strikes.

Ingredient Notes & Details

• Fresh or Frozen Blueberries: If using frozen, do not thaw them before adding to the batter to prevent the color from bleeding too much into the dough.
• Buttermilk: This is the secret to a tender crumb. The acidity reacts with the leavening agents to keep the donuts light and airy.
• All-Purpose Flour: Provides the necessary structure. Be sure to measure by spooning into the cup and leveling off to avoid a dense donut.
• Vanilla and Cinnamon: A touch of spice and high-quality vanilla extract enhances the natural sweetness of the berries.
• Powdered Sugar and Berry Juice: These form the base of the thick, glossy glaze that sets into a professional-looking shell.

Step-by-Step Instructions

The process starts by whisking together your dry ingredients and folding in the wet ingredients just until combined. Overmixing the batter is the enemy of a tender cake donut, so stir gently! Fold in your blueberries at the very end. To get that perfect ring shape, I highly recommend using a piping bag to fill the donut pan wells about three-quarters full. This ensures the batter is evenly distributed and prevents messy spills.

Bake them at 350°F for just 8 to 10 minutes. You’re looking for the tops to spring back when lightly touched. Let them cool in the pan for a few minutes before transferring to a wire rack. Cooling is crucial—if the donuts are too hot, the glaze will melt right off instead of sitting beautifully on top.

While they cool, whisk together your glaze. I like to use a tablespoon of smashed blueberry juice or a little blueberry puree to get that iconic purple color. Dip the top of each cooled donut into the glaze, letting the excess drip off before setting it back on the rack. The glaze will set into a smooth, vibrant coating in about 15 minutes.

Tips

1. Don’t Overfill: Only fill the donut wells about ¾ full. If you fill them to the brim, the holes will close up as they rise, and you’ll end up with blueberry muffins instead of donuts.
2. Grease Thoroughly: Even with non-stick pans, a light coating of baking spray ensures the delicate donuts pop out without breaking.
3. Toss Berries in Flour: If using large fresh blueberries, toss them in a teaspoon of flour before adding them to the batter to prevent them from sinking to the bottom of the pan.
4. The Piping Trick: If you don’t have a professional piping bag, a gallon-sized Ziploc bag with the corner snipped off works perfectly for filling the pans.
5. Glaze Consistency: If your glaze is too thin, add more powdered sugar; if it’s too thick, add a tiny drop of milk or berry juice until it reaches a “heavy cream” consistency.

Storage & Reheating

Baked donuts are at their peak of freshness on the day they are made. However, you can store them in an airtight container at room temperature for up to 2 days. If you need to keep them longer, they can be refrigerated for up to 5 days. I don’t recommend reheating glazed donuts in the microwave as it will melt the icing, but 10 seconds can help soften the cake if they’ve been chilled.

Serving & FAQs

Can I make these into mini donuts? Yes! Use a mini-donut pan and reduce the baking time to about 5–6 minutes. They make adorable bite-sized party favors.

Can I use a different fruit? Absolutely. This base recipe works beautifully with finely chopped strawberries, raspberries, or even blackberries.

📖 Recipe

Print Pin

Homemade Blueberry Cake Donuts

A vibrant, oven-baked breakfast treat featuring a tender blueberry-studded cake and a glossy fruit-infused glaze.

Course Dessert, Snack

Cuisine American, Canadian

Prep Time 10 minutes minutes

Cook Time 15 minutes minutes

Total Time 25 minutes minutes

Servings 12 Donuts

Ingredients

• 2 cups all-purpose flour
• ¾ cup granulated sugar
• 2 tsp baking powder
• ½ tsp salt
• ½ tsp ground cinnamon
• ¾ cup buttermilk
• 2 large eggs
• 2 tbsp unsalted butter melted
• 1 tsp pure vanilla extract
• 1 cup fresh or frozen blueberries
• For the Glaze:
• 1.5 cups powdered sugar
• 2 tbsp blueberry juice or puree
• 1 tbsp milk as needed for consistency

Instructions

• Preheat your oven to 350°F and grease two 6-cavity donut pans.
• In a large bowl, whisk together the flour, sugar, baking powder, salt, and cinnamon.
• In a separate bowl, whisk together the buttermilk, eggs, melted butter, and vanilla.
• Pour the wet ingredients into the dry and stir until just combined. Fold in the blueberries.
• Transfer the batter to a piping bag and pipe into the prepared donut pans, filling each cavity ¾ full.
• Bake for 8–10 minutes or until a toothpick comes out clean.
• Let cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
• For the glaze, whisk together powdered sugar and blueberry juice. Add milk a teaspoon at a time until smooth and dippable.
• Dip the tops of the cooled donuts into the glaze and return to the wire rack to set.