Hazelnut Shortbread with Salted Ganache Sandwich Cookies

INGREDIENTS

1 cup

or 2 Sticks Unsalted Butter, (room temperature, 230g)

2/3 cup

Cane Sugar, (158g)

1/2 tsp

Sea Salt

2 tsp

Vanilla Bean Paste (or vanilla extract)

1 1/4 cups

All Purpose Flour, (184g)

1 cup

Hazelnut Flour, (115g)

1 1/2 cups

Bittersweet Chocolate, (at least 70% cacao, chopped into small pieces, 216g)

3/4 cup

Heavy Cream (160g)

Fleur de Sel (for sprinkling)