Preheat the oven to 350 degrees F and add an aluminum foil layer to the baking pan. Ensure it is aligned with the side to get the cake out easily.
Spray the baking pan with non-stick spray.
At the bottom layer, add pecans and coconut. Mix the remaining topping ingredients and drizzle on the aluminum foil layer.
Now, mix the butter and brown sugar in an electric mixer. Mix it for 3-4 minutes until it is creamy.
Add one egg at a time now to the mixture.
Put the rest of the ingredients one by one and then fold the batter smoothly with the help of a spatula.
Drop the batter in the pan and bake it for 40 minutes.
After that, let it cool for 10 minutes at room temperature. Now, run the knife around the sides and then invert the pan on the serving tray.
Let the cake cool, and then serve it to your family and friends.