Preheat oven to 350 degrees. Grease cookie sheets, or line with parchment paper.
In a mixing bowl, cream together butter, white sugar and brown sugar until light and smooth. Add vanilla and eggs and beat again.
Add all at once, flour, baking soda and salt. Mix until dough forms. Stir in mint chocolate chips.
Drop dough by teaspoonfuls on prepared sheets. Bake in preheated oven for approximately 10 to 12 minutes. Remove from oven and cool on wire racks.
When cookies are cooled, melt dipping chocolate slowly in microwave or double boiler, and dip end of cookie in chocolate. Put dipped cookies on waxed paper to let harden. Makes 5 dozen cookies. Enjoy!