Preheat the Oven: Set your oven to preheat at 350°F (175°C). Prepare a muffin tin by lining it with cupcake liners to ensure easy removal after baking.
Cream Together Butter and Sugar: In a large mixing bowl, use an electric mixer to cream the softened butter and granulated sugar together. Beat on medium speed until the mixture is light, fluffy, and pale in color, which should take about 3-4 minutes.
Incorporate Eggs and Vanilla: Crack in the eggs one at a time, ensuring thorough mixing after each addition to create a uniform batter. Follow by blending in the vanilla extract until well incorporated.
Sift and Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt until evenly mixed and aerated.
Blend the Wet Ingredients: In another bowl, mix the buttermilk, lemon zest, pureed strawberries, and lemon juice. Stir until everything is well combined, ensuring there are no lumps.
Combine Wet and Dry Ingredients: Gradually add the dry ingredients into the wet mixture, mixing gently with a spatula. Alternate this process with the buttermilk mixture, starting and finishing with the dry ingredients. Mix only until just combined to keep the cupcakes light and airy.
Fill the Cupcake Liners: Using a spoon or a small ice cream scoop, fill each cupcake liner about two-thirds full with the batter to allow room for rising during baking.
Bake the Cupcakes: Place the muffin tin into the preheated oven and bake for 18-20 minutes. To check for doneness, insert a toothpick into the center of a cupcake; it should come out clean or with a few moist crumbs attached.
Cool the Cupcakes: Allow the cupcakes to cool in the tin for approximately 5 minutes. Afterward, carefully transfer them to a wire rack to cool completely, ensuring they don’t continue to cook from residual heat.
For the Frosting: In a medium bowl, mix together the powdered sugar, 3 tablespoons of lemon juice, and chopped strawberries. Use an electric mixer on low speed to beat the mixture until it reaches a smooth and creamy consistency. If it’s too thick, gradually add a bit more lemon juice; if too loose, add additional powdered sugar until you achieve your desired thickness.
Once the cupcakes are thoroughly cooled, take a spatula or a piping bag to frost each cupcake generously with the strawberry lemonade frosting, creating swirls or other decorative designs as desired.
Notes
For an appealing finish, top each cupcake with a fresh strawberry slice and a small sprig of mint.