Raspberry Filled Cookies

Why I Love This Recipe
Origin: My delightful mother-in-law!
Ingredients You'll Need
1 lb. butter
1 cup sugar
4 egg yolks
2 tsp. grated lemon rind
2 tsp. vanilla
1/2 tsp. salt
5 and 1/3 cups all purpose flour
Directions
Preheat oven to 375 degrees
Cream together butter, sugar, egg yolks.
Add lemon rind, vanilla, and salt.
Blend 4 cups of flour.
With the rest of the flour, knead the dough.
Wax wrap and refrigerate a few hours.
Roll out (part at a time) 1/4 inch thick.
Cut with a 2 inch cookie cutter.
Tops should have a small cutout in the center.
Bake at 375 for about 12 minutes or until lightly brown.
When cool spread with raspberry jam!