INGREDIENTS
Shortbread Crust
1/2 cup
unsalted butter, extremely soft (1 stick)
1 cup
all-purpose flour
1/3 cup
confectioners’ sugar
1 tbsp
cornstarch
1 tsp
vanilla extract
Peanut Butter Filling
2 tbsp
unsalted butter, melted
1 cup
creamy peanut butter (like Jif or Skippy; not homemade or ‘natural’, it’s too thin and runny)
1/2 cup
confectioners’ sugar
1/2 tsp
vanilla extract
Caramel Layer
about 8 ounces (salted) caramel sauce (I used most of a 10-ounce jar of Trader Joe’s Fleur de Sel Caramel Sauce, just eyeball it. Or make Caramel Sauce or make 5-Minute Caramel Sauce)
Chocolate Layer
1 1/2
to 1 3/4 cups semi-sweet chocolate chips (I used a 9 ounce bag)
2
to 3 tablespoons vegetable shortening, optional but recommended (for smoothness and so chocolate doesn’t set up overly firm, causing it to crack upon slicing)