2. Combine almonds, sugar, water, rose water or vanilla extract, and lemon juice. Cook over low heat, stirring constantly, until mixture becomes thick and pasty.
4. Use 1 teaspoon filling for each triangle. Brush triangles with butter and place on an ungreased baking sheet. Bake for 30 minutes, or until golden. Remove from sheet to cool. When slightly cool, sprinkle with confectioners' sugar.
NOTE:
Triangles can be frozen, unbaked. When ready to use, place unthawed in a preheated 350° oven. Bake for 45 minutes, or until golden.