Citrus cupcakes with berry frosting (Print Version)

# Ingredients:

→ Cupcake Ingredients

01 - 1½ cups all-purpose flour
02 - 1½ teaspoons baking powder
03 - 1 Tablespoon lemon zest
04 - 6 Tablespoons unsalted butter (room temperature)
05 - ¾ cup granulated white sugar
06 - 2 eggs
07 - ½ cup milk (I used 1% milk)
08 - 1 teaspoon vanilla extract
09 - 4 Tablespoons freshly squeezed lemon juice

→ Buttercream Ingredients

10 - ¾ cups fresh blueberries (plus extra for garnish)
11 - 5½ cups powdered sugar
12 - 1 stick unsalted butter (room temperature)
13 - 1 teaspoon vanilla extract
14 - splash of milk (only needed if buttercream consistency is too dry)

# Instructions:

01 - Preheat oven to 350 degrees Fahrenheit. Line a 12-serving cupcake pan with paper liners. Set aside.
02 - Add flour, baking powder, and lemon zest to a small mixing bowl and whisk to combine. Set aside.
03 - In a large mixing bowl, cream the butter and sugar with an electric mixer. Add the eggs and mix until very well combined.
04 - Add the dry ingredients and mix until smooth. Scrape down the sides of the bowl with a rubber spatula, then add the milk, vanilla, and lemon juice. Beat the batter until it's very smooth and fluffy - about 2 minutes.
05 - Spoon the batter evenly into the cupcake liners in a muffin pan until each one is approximately ¾ full.
06 - Bake for 16 minutes, or until a toothpick inserted into one of the cupcakes comes out clean. Carefully remove the cupcakes from the pan and place them on a wire cooling rack to cool completely.
07 - Add the butter and powdered sugar to a large mixing bowl and mix with an electric mixer until just combined. The mixture will look very dry.
08 - Place the blueberries in a food processor and puree.
09 - Pour the pureed blueberries into the mixing bowl and beat until creamy, scraping down the sides of the mixing bowl with a rubber spatula several times to ensure all ingredients are fully incorporated. If the buttercream appears too dry, add a small splash of milk and continue to beat well.
10 - Add the buttercream to a large piping bag fitted with a large star tip and pipe a generous swirl of buttercream onto each cupcake. Garnish with extra blueberries.

# Notes:

01 - Beating the buttercream for an adequate amount of time is the key to having light and fluffy buttercream. Beat the buttercream for at least 2 minutes.
02 - Store frosted cupcakes in an airtight container in the refrigerator for up to 4 days.