01 -
Combine the softened butter, creamy peanut butter, powdered sugar, and vanilla extract in a large mixing bowl. Beat with an electric mixer until the mixture is smooth and evenly blended.
02 -
Line a 9x9 inch baking dish with parchment paper or aluminum foil. Transfer the peanut butter mixture into the dish and press firmly with a rubber spatula to create an even layer.
03 -
Place chocolate chips and coconut oil or butter in a microwave-safe bowl. Heat in 30-second intervals, stirring between each, until the chocolate is completely melted and smooth.
04 -
Pour the melted chocolate evenly over the peanut butter base and spread with a spatula to cover fully. Allow to rest at room temperature until the chocolate sets.
05 -
Lift the bars out of the pan by the parchment paper or foil edges. Cut into portions, cover with plastic wrap, and refrigerate for at least one hour before serving.