Thumbprint Cookies - cooking recipe

Ingredients

2/3 c. margarine
1/3 c. sugar
2 egg yolks
1 tsp. vanilla
1/2 tsp. salt
1 1/2 c. flour
2 slightly beaten egg whites
1 c. finely chopped nuts
preserves

Preparation

Cream butter and sugar until fluffy.
Add egg yolks, vanilla and salt; beat well.
Add flour.
Shape into 3/4-inch balls.
Dip in egg whites, then nuts.
Place on greased cookie sheet.
Press down centers with thumb.
Fill indention with preserves.
Bake at 350\u00b0 for 15 to 17 minutes.