Chocolate Toffee Shortbread Bars

INGREDIENTS

For the shortbread base:

1 1/2 cups

all-purpose flour

1/2 tsp

salt

1/4 tsp

ground cinnamon

2 sticks

unsalted butter, at room temperature

1/2 cup

brown sugar, packed

1/4 cup

granulated sugar

1 tsp

vanilla extract

3 oz

bittersweet or semisweet chocolate, finely chopped

For the topping:

6 oz

bittersweet or semisweet chocolate, finely chopped

1 1/2 cups

toffee bits