First, get our a large pan – 9×13 and give it a quick spray or line it with parchment paper. I prefer giving it a spray with pam, yet you pick.
Next, in a large pot melt the stick of butter and add in the 15 oz of marshmallows (about 50 large mallows). Stir with a spoon on medium to low heat until the mallows are melted. Then add in the vanilla.
Once it’s all combined, add in the puffed rice one cup at a time. Stir until everything is well combined. Then, add in the Reese’s Pieces and stir gently. You don’t want to crack and damage all of the peanut butter prices and their goodness.
Once everything is well mixed, press into the greased pan and chill for 1 hour. Then, cut and eat up.