• Preheat oven to 350°F. Line a 9x13 pans with foil leaving some hanging over edges. Spray with non-stick bakers spray.

Blondies

• In he bowl of a stand mixer with paddle attachment, cream the butter and sugar until light and fluffy. Add the salt, vanilla, eggs, and mix until well incorporated.
• Add in baking powder and flour until just combined.
• Spread batter evenly into the prepared pan. (I found it was easiest to use my hands.)
• Bake on center rack for 24 minutes or until inserted toothpick is removed clean. Allow to cool completely.

Marshmallow Filling

• In a large saucepan over medium heat, melt the butter and marshmallows completely.
• Turn off the heat and stir in the potato chips until completely coated. Immediately pour filling over cooled blondies. Gently press into an even layer.

Chocolate Topping

• Place chocolate into a microwave safe bowl (glass works well) and heat for 30 seconds. Stir. Continue melting in 30 second increments until chocolate is melted and smooth.
• Pour over marshmallow filling and spread as evenly as possible. (I gently tapped my pan against the counter to level)
• Allow chocolate to set before cutting into blondies