Peanutbutter cake

I had to make a peanut butter cake for my daughters birthday and I didn’t have all of the ingredients to do it from scratch. So I used a boxed yellow mix and doctored it up. It turned out delicious and everyone loved it. I’ll probably never go back to the expensive and labor intensive ‘scratch’ recipe again. I used fresh ground peanut butter from my local health food store but I think any peanut butter would work.I just added peanut butter to buttercream icing, thinned w/a bit of milk to frost with and yum!!!

Peanutbutter cake


  • 1 boxed yellow cake mix (I use one with pudding).
  • 1 c sour cream (makes it more moist and homemade tasting)
  • about 3/4 c peanut butter (I used the natural- no added sugar or fats)
  • ingred. called for on the cake box
  • 1 recipe buttercream and peanut butter to add (to taste)
  • about 1-3 T milk to thin icing if needed


  1. Mix cake according to instructions and add sour cream and peanut butter. Bake as usual and frost with chocolate or peanut butter buttercream frosting.Add peanut butter to taste, to buttercream. It tends to thicken up so thin w/milk.

Comments (2)


i want to try this recipe but i'm curious... as using a box cake mix is already a bit of a lose batter... will adding sour cream and peanut butter to it make it thinner? will the cake be sturdy and not crumbly?