Big Fat Double Dark Chocolate Cookies

INGREDIENTS

Eggs, large

1 1/2 cups

All-purpose flour

1 tsp

Baking soda

1 cup

Brown sugar, lightly packed light or dark

1 cup

Cake flour

1/2 cup

Cocoa powder, dark or Dutch-process unsweetened

1/2 cup

Granulated sugar

1/2 tsp

Salt

1 tsp

Vanilla extract

1 cup

(2 sticks, 8 ounces), cold butter straight from the fridge

1 1/2 to 2 cups semisweet or bittersweet chocolate chips or chunks