Easiest Ever Peanut Butter and Chocolate Fudge

1/2 cup butter
1 cup peanut butter
2 2/3 semisweet chocolate chips

Melt the butter in a saucepan over low-medium heat.
Once the butter has completely melted, add in the peanut butter and chocolate chips.
Continue melting over low-medium heat, stirring frequently until the mixture has completely melted.
Pour into a foil-lined 8x8 pan and refrigerate overnight.
Cut into squares to serve.