Grammy's Chocolate Cookies recipe

2 cups plus 2 tablespoons all purpose flour
3/4 cup unsweetened Dutch-process cocoa powder
1 teaspoon baking soda
1/2 teaspoon salt
1 1/4 cups (2 1/2 sticks) unsalted butter, room temperature
2 cups granulated sugar, plus more for rolling
2 large eggs
2 teaspoons vanilla extract