How To make Traditional Decorated Christmas Cookies

Ingredients
3/4
cup
butter, softened
1/2
cup
sugar
1
each
egg
1
tablespoon
lemon peel, finely grated
1
teaspoon
vanilla
1/4
teaspoon
salt
2 1/4
cup
flour
1
tablespoon
water, (use 2 if req'd)
 
 

icing
:

3
each
egg whites
1
tablespoon
sugar, powdered
2
teaspoon
water; (use 3 if req'd)
1

food colors, sprinkles, etc

Directions:
Beat together butter and sugar in small bowl with electric mixer until light and fluffy. Beat in egg, lemon peel, vanilla and salt. Gradually beat in flour until thoroughly incorporated. Add water, a few drops at a time, only until dough starts to come away from side of bowl. Wrap dough in plastic wrap. Refrigerate until firm, about 2 hours.
Preheat oven to 350F. Lightly grease 4 cookie sheets. On lightly floured surface, roll out dough to 1/8