Preheat the oven to 350°F (175°C).

In a mixing bowl, cream together the softened 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, combine the flour and baking powder.

Gradually add the dry ingredients to the wet mixture, alternating with milk, until well combined.

Pour the batter into a greased baking pan.

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

In a separate bowl, whip the heavy cream until stiff peaks form.

Fold in the crushed cookies gently.

Spread the cookies and cream mixture over the cooled cake.