Preheat the oven to 350 degrees F.

Line a 9-inch-square baking dish with nonstick foil.

In a food processor, pulse2 cups flour, butter, confectioners' sugar, 1 teaspoon vanilla and the salt.

Firmly press this in the bottom of the pan and bake 25 minutes.

Let cool just a few mins.

For the filling, whisk dulce de leche, egg yolks, heavy cream, 1 T. flour and 2 tsp. vanilla.

When smooth, pour on crust.

Sprinkle on nuts and chips.

Bake 20 mins.

Let cool and cut into squares.