Supreme Chocolate Mint Chip Cookies

From a Pillsbury Cookie Cookbook that I love

Cookies:
4 cups AP flour
1 cup unsweetened cocoa
1 tsp baking soda
1/2 tsp salt
1 1/2 cups sugar
1 cup firmly packed brown sugar
1 1/2 cups butter, softened
3 eggs
10 oz mint-flavored chocolate chips

Glaze:
2 cups sugar
1/2 cup unsweetened cocoa
1/2 cup butter
1/2 cup milk
1 tsp vanilla

Heat oven to 350. Lightly grease cookie sheets. In a large bowwl, combine flour, 1 cup cocoa, baking soda, salt. In another large bowl, combine 1 1/2 cups sugar, brown sugar, and 1 1/2 cups butter; beat until light and fluffy. Add eggs; blend well. Add flour mixture; mix well. Stir in chips. Drop by Tbsp-ful 3 " apart on cookie sheets. Flatten slightly.

Bake at 350 for 8-10 minutes or until set. Cool 1 minute. Remove from sheets; Cool completely.

Meanwhile, in a medium saucepan, combine al frosting ingredients except vanilla. Bring to a boil. Boil 1 minute. Remove from heat & stir in vanilla. Cool 5-10 minutes or until slightly cooled. Beat until smooth & of spreadign consistency. Glazed cooled cookies. Let stand until set.