Thick and Chewy Chocolate Chip Cookie Bars

INGREDIENTS

1

Egg, large

1

Egg yolk, large

2 1/8 cups

All purpose flour

1/2 tsp

Baking soda

1 cup

Brown sugar, light

2 cups

Chocolate chips or chocolate chunks, semisweet

1/2

cup Granulated sugar

1/2 tsp

Salt

2 tsp

Vanilla extract

1 1/2 sticks

butter