No-Bake Chocolate and Peanut Butter Oatmeal Bars

INGREDIENTS

1 cup

Peanut butter, chunky

15/16 cup

Peanut butter, smooth

1 1/2 cups

Oats, old-fashioned

10 oz

Chocolate, semisweet

1 1/4 cups

Confectioners' sugar

1 1/2 oz

Milk chocolate

1/4 tsp

Salt, coarse

Vegetable oil cooking spray

9 oz

Chocolate wafers

5 ounces (1 stick plus 2 tablespoons) unsalted butter, cut into small pieces