Preheat the oven to 350 and grease an 11x9 cake pan

Mix and bake the cake according to directions.

Once the cake is cooked, cool it for about 10 minutes and poke holes all over the cake.

In a small sauce pot, combine Dulche De Leche and heavy cream. Set the temperature on medium, cook whisking constantly until heated through. Take off heat. Separate in two portions.

Mix the first half of the Dulche De Leche mixture with coconut.

Pour the other half over the cake. Spread it slowly and evenly, pressing gently.

Spread the coconut mixture over the cake. Cool completely.

Drizzle with a hot fudge.