Bars:

1. Preheat oven to 350 F. Grease 10” x 15” cookie pan.
2. In large bowl, cream the butter and sugar.
3. Add egg, eggnog and vanilla; stir.
4. Add dry ingredients and mix well.
5. Spread evenly in pan. Bake 18-20 minutes (until edges are golden brown and center looks dry).
6. Remove from oven and cool on wire rack.
7. Frost when cool and cut into bars. These cookies freeze well.

Frosting:

1. Cream the margarine or butter.
2. Add remaining ingredients and beat until smooth.
3. Spread onto bars. Sprinkle lightly with red and green sugar, if desired.