Salted Chocolate Chunk Shortbread Cookie Recipe

INGREDIENTS

10 tbsp

unsalted butter, (room temperature)

1/2 cup

powdered sugar

2 tbsp

light brown sugar, (packed)

1 tsp

vanilla bean paste, (or vanilla extract)

1/4 tsp

salt

1 3/4 cups

all-purpose flour

4 oz

coarsely chopped semisweet chocolate

large egg yolk, (lightly beaten with 1 teaspoon water (for coating the dough log))

1/4 cup

turbinado or other coarse sugar for rolling

Fine flake sea salt for garnish, (optional)