Mix dry ingredients in a bowl. In a separate bowl, mix together margarine, egg, and almond extract. Combine wet and dry ingredients and mix well. Roll dough into balls about 1 1/2 inches wide. Place on cookie sheet, leaving 2 inches between each ball. Press 1 almond into the center of each cookie. Do not flatten cookie. Brush beaten egg onto cookies and bake in a preheated 350 oven for 10-20 minutes, depending on how crunchy you like them.