COOKIE:

1 2/3 c. flour
1/3 c. powdered sugar
1 c. butter, softened
1 tsp. vanilla

FILLING:

1 egg, beaten
2/3 c. sugar
2-3 tsp. grated lemon peel
1 tsp. cornstarch
1/4 tsp. salt
3 tbsp. lemon juice
1 tbsp. butter
Coconut or powdered sugar

In medium bowl combine ingredients for cookie; blend well. Chill dough. Heat oven to 350 degrees. Shape dough into 1 inch balls, place 2 inches apart on ungreased cookie sheet. With thumb or forefinger make imprint in center of each cookie. Bake 8-10 minutes, until light brown, immediately remove from cookie sheet; cool.

Filling: Combine all ingredients except coconut or powdered sugar. Cook over low heat until smooth and thick. Cool. Top each cookie with about 1/4 teaspoon filling. Sprinkle with powdered sugar or coconut.