grandma martin's peanut butter swirl bars

Ingredients For grandma martin's peanut butter swirl bars

• 1/2 c

  crunchy peanut butter
• 1/3 c

  butter, softened
• 3/4 c

  packed brown sugar
• 3/4 c

  sugar
• 2

  eggs
• 2 tsp

  vanilla extract
• 1

  12 ounce package chocolate chips
• 1 c

  all purpose flour
• 1 tsp

  baking powder
• 1/4 tsp

  salt