Here are the steps to properly tent cake with aluminum foil:

1. Prepare the Cake:
- Bake the cake according to the recipe instructions and allow it to cool completely on a wire rack.

2. Prepare the Foil Tent:
- Cut a large piece of aluminum foil, large enough to cover the entire top of the cake with some overhang on the sides.
- Gently fold the foil in half to create a tent-like shape. You want the foil to create a domed shape over the top of the cake, not sit directly on the surface.

3. Secure the Foil Tent:
- Carefully place the foil tent over the top of the cooled cake, ensuring that it covers the entire surface.
- Gently crimp the edges of the foil around the sides of the cake to keep the tent in place. Avoid pressing the foil down directly onto the cake's surface.

4. Bake or Chill the Cake:
- If the recipe calls for additional baking time after the initial baking, place the cake with the foil tent in the oven and continue baking as directed.
- If the cake needs to be chilled, refrigerate it with the foil tent in place.

The key benefits of tenting a cake with aluminum foil are:

1. Prevent Overbrowning:
- The foil tent helps to prevent the top of the cake from browning too quickly or unevenly during baking.

2. Retain Moisture:
- The foil tent helps to trap moisture inside the cake, preventing it from drying out during extended baking or chilling.

3. Maintain Delicate Textures:
- For cakes with delicate or fragile toppings, the foil tent helps to protect the surface from direct heat or contact.

Remember to remove the foil tent before serving the cake to allow the top to be visible and accessible.