Preheat the oven to 350°F (175°C). Grease and flour a cake pan.

In a mixing bowl, cream together the butter and sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition.

Stir in the vanilla extract.

In another bowl, whisk together the flour, baking powder, and salt.

Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Fold in the sliced strawberries.

Pour the batter into the prepared cake pan and smooth the top.

Bake for 25-30 minutes or until a toothpick inserted into the center comes out clean.

In a chilled mixing bowl, whip the heavy cream until soft peaks form.

Gradually add the powdered sugar and vanilla extract, continuing to whip until stiff peaks form.

Spread the whipped cream frosting over the cooled cake.