I am a fan of box cake mix. I have several tricks that I use to doctor them up. One that I haven't been able to conquer is turning it into sponge for fondant covered cakes. Are there any suggestions?

I don't have a sponge cake recipe from a box, but I can share a recipe that was posted for public use on TLC of the Cake Bosss Sponge cake recipe. Here you go

Cake Boss Sponge Cake

Ingredients
4 lg  eggs at room temp
2 c  white granulated sugar
1 tsp  vanilla extract
1 c  whole milk
1/4 c  unsalted or lightly salted butter
get recipes @ goboldwithbutter.com
2 c  all purpose flour
2 tsp  baking powder
1/4 tsp  salt (use 3/8 tsp if using unsalted butter)
Directions
1
Beat eggs in large mixing bowl (with paddle attachment if possible) for 4 minutes. Do not shorten the time.
2
Add sugar and continue beating for another 4 - 5 minutes until light and fluffy. Add vanilla and stir on low just until combined.
3
In a separate, sift together dry ingredients. Add to eggs and sugar on low speed just until combined.
4
In a saucepan (or microwave) heat milk and butter just until the butter is melted. Add to batter, beat just until combined.
5
Pour into two greased and floured 8" pans.
6
Bake at 325 about 33 - 35 mins or until the middle springs back when touched, or a toothpick inserted in the center comes out clean.
7
Remove from oven and let stand in pans for 10 mins. Then turn out onto a wire cooling rack and cool completely before frosting.

AHas anybody tried this recipe ^^^. ??

A

I did and I love it, but I have seen lighter sponges, but those were from a cake mix ofcourse lol:D