*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.
Preheat oven to 350 degrees F (180 degrees C). Thoroughly butter the bottom and sides of a 13 x 9 inch baking pan.
In a large mixing bowl, cream together the butter and sugar. Beat in the almond extract. Gradually mix in the arrowroot flour.
In a separate bowl, beat the egg whites and cream of tartar until stiff peaks form. Gently fold the egg whites into the batter. Pour the batter into the baking pan and smooth the surface with a rubber spatula. Bake for 30 minutes, or until a toothpick inserted in the center comes out clean. Dust with confectioner's sugar.