Preheat your oven to 350°F (175°C). Prepare yellow cake mix according to package directions, blending in eggs and oil or melted butter. Pour into greased baking pan and bake for 25-30 minutes, or until a toothpick comes out clean. Allow to cool on a wire rack.

Once cooled, poke holes evenly across the surface of the cake using a skewer or the handle of a wooden spoon, about 2/3 of the way down.

In a mixing bowl, whisk together Kahlua and powdered sugar until smooth. Drizzle glaze generously over the poked cake, ensuring it fills each hole. Let it sit for a few minutes.

Spread whipped topping evenly over the cake's glazed surface for a smooth finish.

Cover with plastic wrap and refrigerate for at least one hour before serving. Slice into squares and enjoy.