I made a peanut butter cake, but it had too much oil. I used a recipe I'm familiar with, but added peanut butter to it. I used natural peanut butter (only contains peanuts and a little salt).
How much should I cut back on the butter (the only oil in my recipe) when adding peanut butter? Do I need to adjust the eggs as well? I used approximately 1/3 c peanut butter for a single layer cake.