⅔ - 1 cup JIF Salted Caramel (or whatever flavor you like) chocolate hazelnut spread
Instructions
Preheat oven to 350 degrees.
Beat butter and brown sugar until blended and slightly fluffy. Mix in vanilla and egg yolk. Add flour and salt; work in just until fully mixed.
Press ⅔ of the mixture into an ungreased 9 X 13 cake pan, or ⅓ into each of two square or round cake pans. Spread the chocolate hazelnut spread (divided if using two smaller pans) over the dough. Crumble and scatter the remaining dough over the top of the "Nutella".
Bake for about 30 minutes, until top is golden brown. Cool and cut into bars or wedges.
Recipe by Messin' With Perfection at https://www.messinwithperfection.com/toffee-shortbread-nutella-crumble-bars/