Preheat oven to 350 F

Line an 8X8 pan with parchment paper and grease with oil or butter

Melt the butter in microwave or stovetop and whisk in egg, peanut butter and brown sugar. This can be done in a stand mixer as well. Make sure mixture is fully combined.

Stir in flour, salt and baking powder in 1/2 cup increments until brownie batter until all ingredients are evenly combined.

Fold in white chocolate chips

Spread blondie batter into greased 8X8 pan making sure it is spread out even

Bake for 45 minutes

Once you remove blondies from the oven, make sure they cool completely in the pan for at least 45 minutes. If they are still warm once they are removed they may crumble apart as they did not have enough time to set.

Cut and serve.

Store in an airtight container for up to 5 days.