1 c. flour
1/2 c. butter, softened
1/2 tsp. salt
4 eggs
1 tsp. vanilla
1 - 16 oz. can chocolate-flavored syrup
1 c. sugar

Filling:

2 c. confectioners' sugar
1/2 c. butter, softened
1 tbsp. water
1/2 tsp. mint extract
3 drops green food coloring

Topping:

1 - 10 oz. pkg. mint chocolate chips
9 tbsp. butter, no substitutes

Combine the first seven ingredients in a large mixing bowl; beat at medium speed for 3 minutes. Pour batter into a greased 13x9 baking pan.

Bake at 350°F for 30 minutes. (Top of brownies will still appear wet.) Cool completely. Combine filling ingredients in a medium mixing bowl; beat until creamy. Spread over cooled brownies. Refrigerate until set. For topping, melt chocolate chips and butter over low heat in a small saucepan. Let cool for 30 minutes or until lukewarm, stirring occasionally. Spread over filling. Chill before cutting. Store in refrigerator.