That looks supe easy. I would caution though, use dutched cocoa powder rather than regular, as the dutching process uses an alkali to remove fat from the cocoa powder, and also neutralize the natural acids ikn cocoa powder. If you use plain cocoa, the acids might change the leavening action and give you a dense cake. Also, I have found with boxed cake mixes, adding just one extra tbs. of cooking oil greatly improves the texture of the cake, making it more moist.
Another, super easy, and super tasty chocolate cake is this - https://www.hellmanns.com/us/en/reci...aise-cake.html
Just in case you want to try it, here's my tried and true recipe for the same:
Chocolate Mayonnaise Cake
This is a rich, chocolaty cake that is simple to make and stores well staying moist. This
has long been my favorite recipe and while growing up I always requested it for a
birthday cake. My Mother always led me to believe that it was a very complicated
and complex cake to make whenever I asked for it, I suppose to make me think it
was something special. It wasn't until i moved out and asked for the recipe that I
learned how simple it really was. Clever lady my Mother. :) Makes 9 X 16 cake or 2
2 cups flour
1 cup sugar
1 teaspoon baking soda
1 ½ teaspoons baking powder
4 tablespoons dark cocoa
Blend together and add to above
1 cup mayonnaise or salad dressing
1 teaspoon vanilla extract
1 cup water
1. Blend the two sets of ingredients together whisking well until a smooth batter is created.
2. Pour batter into a greased and floured 9 X 16 or 9 X 18 baking pan.
3. Slightly jiggle pan to smooth out batter and to help release any large air bubbles that may be trapped in the batter.
4. Bake at 350 degrees in a preheated oven for 30 minutes or until a toothpick inserted in the center comes out clean.
5. Let the cake cool and remove to a foil covered square of cardboard. Spread with either a great chocolate butter cream, or strawberry buttercream frosting. For an extra treat, and easy frosting, combine equal amounts of pre-made chocolate frosting, whatever brand you prefer, and Nutella chocolate spread. I did this and the people loved the frosting so much, that they brolke out the bowl of left-over frosting, and devoured it with graham crackers
No matter what cake you make, I hope it comes out spectacular.
Seeeeya; Chief Longwind of the North