Cream well together the butter sugar and brown sugar
Beat well together and add to creamed mixture the water eggs and vanilla
Sift together and blend in the flour soda and salt Cover and refrigerate 2 hours or overnight
Using 1 pound mint chocolate wafers enclose a wafer in about 1 tablespoon dough Place on greased cookie sheet about 2-inches apart and top with a walnut half
Plain chocolate wafers may be used if preferred Bake at 375 for 10 to 12 minutes or until lightly browned