Lemon Blueberry Cupcakes with Blueberry Buttercream Frosting
Moist homemade lemon cupcakes with fresh lemon curd filling and blueberry buttercream frosting. A fun treat for any spring or summer occasion!
Servings: 9
Ingredients
Blueberry puree
- 1 1/2 C blueberries fresh or frozen
- Zest of 1 lemon
- 2 Tbsp lemon juice freshly squeezed
- 1/4 C granulated sugar
Cupcakes
- 1/4 C unsalted butter softened
- 1/2 C granulated sugar
- 2 large eggs
- 1 tsp lemon extract
- zest of 1 lemon
- 2 Tbsp lemon juice freshly squeezed
- 1/2 tsp salt
- 1/2 tsp baking soda
- 1 1/4 tsp baking powder
- 1 1/4 C all purpose flour
- 1/2 C sour cream
- Lemon curd see notes
Frosting
- 1 C unsalted butter softened
- 3 C powdered sugar
- 3 Tbsp blueberry puree see above
Instructions
- Prepare lemon curd ahead, as directed. Keep chilled until ready to use.
- Prepare blueberry puree. In a small saucepan, combine blueberries (fresh or frozen, if frozen do not thaw), lemon zest, lemon juice and sugar. Cook over medium heat, stirring occasionally. When berries are soft, mash with a potato masher. Continue cooking until mixture has thickened. Immediately press through a mesh strainer, into a clean bowl. Allow puree to cool completely prior to using in frosting. If possible, make ahead or chill while cooking the cupcakes.
- Preheat oven to 350°F. Line a standard cupcake pan with 9 paper liners.
- In a large bowl or stand mixer, cream together butter and sugar until light and fluffy. Mix in eggs, lemon extract, zest and lemon juice. Scrape bowl as needed. Add salt, baking powder and baking soda. Alternate additions of flour and sour cream, mixing until fully combined and no streaks remain.
- Divide batter equally between prepared baking cups, using a large cookie scoop or filling roughly 2/3 full. Bake for 16-18 minutes or until a toothpick inserted comes out clean or with a few moist crumbs. Cool in pan until easy to handle, then transfer to a wire rack to cool completely.
- When cupcakes have cooled, core and fill cupcakes. Add lemon curd to a small piping bag or sandwich bag, with the tip removed. Using a sharp knife or cupcake corer, carefully remove the center of each cupcake. Do not cut all the way to the bottom. Trim off the bottom portion of the removed cupcake core. Fill each cupcake with lemon curd and replace the top of the cake core back on each cupcake.
- In a large bowl or stand mixer, fit with a paddle attachment, beat butter adding 1 cup of powdered sugar at a time. Scrape the bowl as needed. With mixer off, drizzle in 1 tablespoon of puree at a time, increasing speed between additions. Mix until fully combined and no streaks remain. Transfer frosting to a large piping bag fit with desired piping tip. Frost cupcakes as desired, topping off with fresh blueberries prior to serving.
- Store cupcakes in an airtight container for up to several days. Cupcakes may also be chilled and brought to room temperature prior to serving.
Notes
Homemade lemon curd or store bought may be used.
This recipe yields 9 regular sized cupcakes.
An original recipe from Baked by Rachel