Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.

In a bowl, whisk together flour and baking powder; set aside.

In another bowl, beat butter and sugar until light and fluffy. Add eggs one at a time, mixing well after each addition.

Gradually mix in the dry ingredients and whole milk until just combined.

Pour batter into the prepared pan and bake for 30-35 minutes or until a toothpick comes out clean.

Once cooled slightly, poke holes in the cake using a fork. Combine sweetened condensed milk, evaporated milk, and vanilla; pour over the cake to soak.

Whip heavy cream until stiff peaks form and spread over the top before serving.