Step 1

Preheat oven to 410 degrees.

Step 2

In a large bowl, cream together cold butter and sugars until light and fluffy, about 4 minutes. Add eggs one at a time, mixing well after each addition.

Step 3

Add cocoa, cake flour, all-purpose flour, cornstarch, baking soda, and salt and stir until combined. Stir in peanut butter chips (or can substitute chocolate chips).

Step 4

Chill dough for 10 minutes.

Step 5

Separate dough into large balls and place on lightly colored cookie sheet. Lightly press on top of dough to smooth out. They are bigger than you think! You will fit 4 cookies on one large cookie sheet. The dough makes 8 extra large cookies.

Step 6

Bake for 8-11 minutes or until golden brown on the top. Let them rest for at least 10 minutes to set.