Apple, Peanut butter cake

What, apple & Pb? Let me surprise you by telling you how great this is. I made this cake after slicing up an apple and using some Pb on the side as a dip, and  I thought, why not make this into a cake? So that's what I did and it turned out great.
You'll need:
2-3 Granny Smith apples sliced
1/3 cup peanut butter
1/3 cup coarsely chopped walnuts
1/2 cup oatmeal
1 1/2 cups flour
2 eggs
2tbsp oil
1 tbsp baking powder
less than 1/4 spoon salt
1 tsp vanilla
2 tsp lemon juice
9x9 baking dish

Mix all the ingredient in a bowl and pour into pan, bake at 350 F for 45 minutes and enjoy!

Mouth-Watering Apple Recipes - The Ultimate Cookbook for America's Most Popular Fruit! (85+ Recipes)