I’ve been making this blueberry frosting for years, and it never fails to disappear within minutes at every gathering I bring it to. The secret is using fresh blueberries (I swear by Wyman’s) and real butter—trust me, it makes all the difference in creating that perfect creamy, fruity flavor. Whether you’re topping cupcakes or slathering it on a layer cake, this frosting is about to become your new go-to recipe.
| Preparation Time | 20-30 minutes |
| Cooking Time | 20-30 minutes |
| Total Time | 40-60 minutes |
| Level of Difficulty | Medium |
| Servings | 4.5 cups of frosting |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 2050-2200
- Protein: 1-2 g
- Fat: 185-195 g
- Carbohydrates: 310-330 g
Ingredients
For the blueberry sauce:
- 1 cup blueberries (I use Wyman's for the best color and flavor)
- 1 tbsp sugar
- 1 1/2 tbsp lemon juice
- 1/4 tsp salt
For the frosting base:
- 1 cup butter (I prefer Kerrygold unsalted for a richer, creamier finish)
- 3 1/4 cups powdered sugar (sifted to remove lumps for a smoother texture)
- 1 tsp vanilla extract
- 1 tbsp heavy cream
Step 1: Cook and Reduce the Blueberry Base
- 1 cup blueberries
- 1 tbsp sugar
- 1 1/2 tbsp lemon juice
- 1/4 tsp salt
Combine blueberries, sugar, lemon juice, and salt in a medium saucepan over medium-low heat.
Mash the berries gently with a fork or potato masher as they warm, breaking them down to release their juices and color.
Continue simmering, stirring occasionally, until the mixture reduces to a thick, syrupy consistency—about 8-10 minutes.
This concentration of flavors is essential for a frosting that tastes distinctly of blueberry rather than just tinted butter.
Strain the mixture through a fine-mesh sieve into a bowl, pressing gently on the solids to extract all the liquid, then discard the pulp.
Set the blueberry liquid aside to cool completely to room temperature—this prevents it from melting the butter when we incorporate it later.
Step 2: Cream the Butter Until Fluffy
- 1 cup butter
Cut the butter into smaller cubes and place it in a large mixing bowl.
Using an electric mixer on medium speed, beat the butter for 2-3 minutes until it becomes pale, fluffy, and nearly doubled in volume.
This aeration is crucial—it creates tiny air pockets that give the frosting a light, spreadable texture.
I find that quality butter like Kerrygold makes a noticeably richer frosting, so don't skip on this ingredient if you can help it.
Step 3: Build the Frosting Base
- 3 1/4 cups powdered sugar
- 1 tsp vanilla extract
- 1 tbsp heavy cream
Reduce the mixer speed to low and gradually add the sifted powdered sugar in 2-3 additions, beating well after each addition to avoid a cloud of sugar.
Once all the powdered sugar is incorporated, increase the speed to medium and beat for another 1-2 minutes until the frosting is smooth and creamy.
Add the vanilla extract and heavy cream, beating just until combined.
The heavy cream adds moisture and richness, helping the frosting achieve the perfect consistency for spreading.
Step 4: Incorporate the Blueberry Liquid
- blueberry liquid from Step 1
With the mixer on low speed, add the cooled blueberry liquid from Step 1 one tablespoon at a time, beating well after each addition until fully combined before adding the next tablespoon.
Stop adding liquid once you've reached your desired color and flavor intensity—you may not need all of it.
I like to add the blueberry juice gradually because it gives me control over the frosting's consistency and ensures it stays thick enough to frost a cake without becoming runny.
Once the frosting reaches the right consistency, give it a final 30 seconds on medium speed to ensure everything is fully incorporated.
Tangy Blueberry Frosting
Ingredients
Method
- Combine blueberries, sugar, lemon juice, and salt in a medium saucepan over medium-low heat. Mash the berries gently with a fork or potato masher as they warm, breaking them down to release their juices and color. Continue simmering, stirring occasionally, until the mixture reduces to a thick, syrupy consistency—about 8-10 minutes. This concentration of flavors is essential for a frosting that tastes distinctly of blueberry rather than just tinted butter. Strain the mixture through a fine-mesh sieve into a bowl, pressing gently on the solids to extract all the liquid, then discard the pulp. Set the blueberry liquid aside to cool completely to room temperature—this prevents it from melting the butter when we incorporate it later.
- Cut the butter into smaller cubes and place it in a large mixing bowl. Using an electric mixer on medium speed, beat the butter for 2-3 minutes until it becomes pale, fluffy, and nearly doubled in volume. This aeration is crucial—it creates tiny air pockets that give the frosting a light, spreadable texture. I find that quality butter like Kerrygold makes a noticeably richer frosting, so don't skip on this ingredient if you can help it.
- Reduce the mixer speed to low and gradually add the sifted powdered sugar in 2-3 additions, beating well after each addition to avoid a cloud of sugar. Once all the powdered sugar is incorporated, increase the speed to medium and beat for another 1-2 minutes until the frosting is smooth and creamy. Add the vanilla extract and heavy cream, beating just until combined. The heavy cream adds moisture and richness, helping the frosting achieve the perfect consistency for spreading.
- With the mixer on low speed, add the cooled blueberry liquid from Step 1 one tablespoon at a time, beating well after each addition until fully combined before adding the next tablespoon. Stop adding liquid once you've reached your desired color and flavor intensity—you may not need all of it. I like to add the blueberry juice gradually because it gives me control over the frosting's consistency and ensures it stays thick enough to frost a cake without becoming runny. Once the frosting reaches the right consistency, give it a final 30 seconds on medium speed to ensure everything is fully incorporated.