Preheat oven to 350F (175C). Line a 12-cup muffin tin with cupcake liners.
In a medium bowl, whisk together flour, baking powder, and salt.
In a large bowl, cream together butter and granulated sugar until light and fluffy.
Beat in eggs one at a time, then stir in vanilla extract.
Gradually add the dry ingredients to the wet ingredients, alternating with the milk, beginning and ending with the dry ingredients. Mix until just combined. Do not overmix.
Fill cupcake liners about two-thirds full.
Bake for 18-20 minutes, or until a wooden skewer inserted into the center comes out clean.
Let cupcakes cool in the tin for a few minutes, then transfer to a wire rack to cool completely.
While the cupcakes are cooling, prepare the whipped cream. In a large bowl, beat heavy cream and powdered sugar until stiff peaks form.
Once the cupcakes are cooled, top with whipped cream and sliced strawberries.
Tips: For a tangier flavor, add a tablespoon of sour cream to the batter. Almond extract can be used in place of vanilla for a subtle flavor variation.