4 mean chocolate cookies with Recipes

unsalted butter, brown sugar , firmly packed, white sugar, eggs, vanilla, all-purpose flour, baking soda, salt, chocolate chips, walnuts

all-purpose flour, salt, baking powder, baking soda, unsalted butter, room temperature, light-brown sugar, granulated sugar, pure vanilla extract, milk, eggs, old fashioned oats, semisweet chocolate, chopped into 1/2 inch chunks, coarsely chopped pecans (5 oz)

all-purpose flour, baking soda, salt, bittersweet chocolate or 11 oz semisweet chocolate, unsalted butter , cut into cubes, vanilla extract, instant espresso powder, eggs, light brown sugar, granulated sugar, chocolate chips (about 2 cups), chopped pecans