Peanut butter and chocolate rice squares

This is so simple it should be against the law...
Ingredients:
butter 1/4 cube
1 tablespoon peanut butter
1/2 bag marshmallows
4 cups  gf chocolate flavored rice kernels (generic rice krispies)

In an 8 cup corning ware mixing bowl put in butter, marshmallows, and peanut butter
cook in microwave for 1 minute on high
stir until smooth, add rice kernels, stir until all coated...pour into a greased (pam) 9x9" pan
let harden (if possible) cut into squares and serve.....