Peanut Butter Brownie Trifle

1 pkg brownie mix - made according to package directions (9x13 size)
2 boxes instant vanilla pudding (3 oz)
3 cups of milk
1/2 cup peanut butter - creamy
2 tsp vanilla
12 oz cool whip
2 - 8 count each (or a whole bag and enjoy the rest) Reece's peanut butter cups - diced.

Bake brownie according to package directions. Let cool. Cut into small squares. - divide pan in half. Lay half the brownies in the bottom of the trifle bowl. In small stainless steel mixing bowl, combine milk and pudding. Whisk together until smooth - stir in peanut butter and vanilla. Gently fold in 2 cups cool whip. Spread half over the brownies. Top with half of remaining cools whip. Sprinkle half the Reece's cups over top of cool whip. Repeat layers. Refrigerate until ready to serve.