Peanut Butter Cup Blondies

INGREDIENTS

1 1/4 cups

all-purpose flour

1 cup

granulated sugar 

1/2 tsp

baking powder 

1/4 tsp

salt 

1/3 cup

creamy peanut butter 

1/4 cup

butter, melted and cooled slightly

2 tbsp

2% reduced-fat milk (I used skim because that's what I had) 

1 tsp

vanilla extract 

large eggs, lightly beaten 

1/4 cup

semisweet chocolate chips 

Cooking spray 

peanut butter cups, coarsely chopped