Peanut Butter Confetti Cake

I pinned a recipe from the Domessticated for Peanut Butter Confetti Cake, but I made some changes because I don't really like butterscotch.

Ingredients
1 cup creamy peanut butter
1/2 cup margarine or butter
2 300g packages of semi-sweet chocolate chips (This is where I swapped out the butterscotch chips.)
1 large (400g) package of mini marshmallows (The original recipes called for colored mini marshmellow, which would have been great except I think they only come out at certain times of year.)
 
1. In a saucepan on low to medium heat, melt butter, chocolate chips and peanut butter together. Stir constantly.
2. Let the mix cool (it doesn't have to be cold) about 15 minutes or so.
3. Add your marshmallows and mix thoroughly.
4. Then transfer to an 8x8" square dish.
5. Refrigerate, and serve when cooled completely. This square is best kept in the fridge between snacking!

I didn't think the recipe would make enough, but I had so much that I made everyone take a few squares home with them.