01 - Preheat the oven to 350°F. Line a 12-cup muffin tin with paper liners.
02 - In a medium bowl, whisk together flour, baking powder, and salt.
03 - In a large bowl, cream butter and sugar until light and fluffy. Beat in eggs one at a time, then add vanilla.
04 - Add half of the dry ingredients to the butter mixture. Mix gently, then add the milk, followed by the remaining dry ingredients. Mix until just combined.
05 - Divide the batter evenly among the cupcake liners, filling each about 2/3 full.
06 - Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean. Cool completely on a wire rack.
07 - Combine diced strawberries, sugar, and lemon juice in a small bowl. Let sit for 10 minutes to macerate.
08 - Use a small knife to cut out a 1/2-inch deep core from the center of each cupcake. Fill each cavity with about 1 teaspoon of the strawberry mixture.
09 - Beat cold cream, powdered sugar, and vanilla together until stiff peaks form.
10 - Pipe or spoon whipped cream frosting onto each cupcake. Garnish with halved strawberries.