Instructions: Heat oven to 350 degrees. Lightly grease cookie sheet. Stir together flour, walnuts, cinnamon and lemon peel. Beat granulated sugar and margarine in large bowl on medium speed until creamy. Beat in egg and vanilla until fluffy. Gradually stir in flour mixture. Shape dough into 1 inch balls. Place 2 inches apart on cookie sheet. Press thumb in center of each to make indentation. Fill each indentation with 1/2 teaspoon jam. Bake 12 to 15 minutes or until golden brown around edges. Immediately remove from cookie sheet; cool completely.

Sprinkle with powdered sugar.

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