Lightly spoon flour into dry measuring cups, and level with a knife. Combine 2 cups flour, ginger, baking soda, cinnamon, pepper, and salt. Beat margarine, 1/2 cup granulated sugar, and brown sugar at medium speed of a mixer until light and fluffy. Add molasses, and beat 2 minutes. Add egg and egg white, and beat mixture until fluffy. Stir in the flour mixture until well-blended. Shape the dough into a ball with floured hands; add enough of remaining flour, 1 tablespoon at a time, to prevent dough from sticking. Wrap in plastic wrap; chill 1 hour.
Preheat oven to 375°.
Shape dough into 30 balls with floured hands. Roll balls in 1/4 cup granulated sugar; place 2 inches apart on baking sheets coated with cooking spray. Bake at 375° for 12 minutes. Immediately remove cookies from pans to a wire rack; cool completely.
first off i kind of goofed on the recipe...i rolled them into balls before putting them into the refrig instead of after so that is maybe why mine turned out the way they did - very hard/chewy like, not hard crumbly but chewy - they turned out super yummy though! may use less ginger next time!