1 (8 ounce) container almond paste
1 stick (1/2 cup) cold margarine
1-3/4 cup flour
½ cup sugar
1 teaspoon baking powder
1 cup slivered almonds
4 egg whites
½ teaspoon vanilla
Preheat oven to 350 degrees. Grate almond paste and margarine in a food processor.
Add flour, sugar and baking powder and mix. Add slivered almonds, egg whites and vanilla and process until dough forms. Roll into log and place on an ungreased cookie sheet. Bake for 35 minutes. Cut into slices and return to oven for 10 minutes more.