Chocolate Sponge Cake Cut Outs

Makes 10 to 12 servings

Butter or cooking spray
6 eggs, separated
3/4 teaspoon cream of tartar
2/3 cup sugar, divided
1 teaspoon vanilla
1/2 cup unsweetened cocoa (baking cocoa)
1/4 cup all-purpose flour
1/4 teaspoon salt

Filling of your choice (see options list)

Lightly grease or spray 15 1/2 x 10 1/2 x 1-inch jelly roll pan. Line bottom with waxed paper. Grease again. Set aside.

Beating Eggs: In large mixing bowl at high speed, beat egg whites with cream of tartar until foamy. Add 1/3 cup of the sugar, 2 tablespoons at a time, beating constantly until sugar is dissolved and whites are glossy and stand in soft peaks. To test, rub just a bit of the egg white-sugar mixture between thumb and forefinger to feel if sugar has dissolved. Set aside.

In small mixing bowl at high speed, beat egg yolks until thick and lemon-colored, about 3 to 5 minutes. Gradually beat in remaining 1/3 cup sugar and vanilla until blended. In small bowl, stir together cocoa, flour and salt. Sprinkle over reserved beaten whites. Add beaten yolk mixture. Gently, but thoroughly, fold yolk and cocoa mixtures into whites. Pour into prepared pan. Gently spread evenly.

Bake in preheated 400° F oven until top of cake springs back when lightly touched with finger, about 10 to 12 minutes. With spatula, loosen cake from sides of pan. Turn out cake by inverting pan over wire rack. Carefully pull waxed paper off bottom of cake. Cool completely.

Using cookie cutters, cut shapes from cooled cake, making sure there are at least 2 of each shape. Spread or top one side of a cake shape with filling ingredients. Cover it with another cake piece of the same shape to make a sandwich. Repeat until all shapes are used.

Tips for beating egg whites:
• When you’re going to beat egg whites, take the eggs out of the refrigerator and carefully separate the yolks and whites (see the next tip). Then, let the whites sit at room temperature about 20 minutes. Warming the whites just enough to take the chill off helps the whites beat up to the best volume.

• Both fat and salt make it hard for egg whites to beat up well. Use an egg separator or a funnel to carefully separate egg whites and yolks so that no fat from the yolk gets into the whites. Use a clean glass or metal bowl for beating because plastic bowls can absorb fat and hold it in their pores. Add salt to the recipe’s dry ingredients or to the yolks, not to the whites.

• Be sure to use the amount of cream of tartar, vinegar or lemon juice called for in the ingredient list. These are all acids. Acids help egg whites to hold air.

• Sugar helps prevent overbeating in egg whites and helps make the foam stable. It’s important to add the sugar slowly, about 1 to 2 tablespoons at a time.

• Test egg whites to see if they’re beaten just right to make a dish puff. Turn off the mixer and tilt the bowl a little. If the egg whites slip and slide, beat a little more and test again. Stop beating when the beaten whites stop slipping and sliding. Don’t let beaten egg whites sit too long. If you do, the air will escape and some of the whites will turn liquid again.

• Try not to overbeat egg whites. Beating too much causes the whites to lose air so a recipe won’t puff as it should. Overbeaten whites also form dry, brittle clumps that don’t mix well with other ingredients.

• When baking, preheat the oven. Use the right size baking dish or pan for the recipe. It’s easier for air-filled whites to climb up a rough surface than a slick one. So, don’t grease the dish unless you also dust (sprinkle) it with a dry ingredient, like sugar, nuts, corn meal or bread crumbs. Place the baking dish on a rack in the lower third of the oven. All these things help the air bubbles to expand and make the recipe rise in volume.

Tips for beating egg yolks:
• It’s hard to overbeat egg yolks. It takes about 3 to 5 minutes of beating with an electric mixer on high speed to beat yolks enough for most recipes. Stop beating when the yolks are thick and they turn a pale lemon-yellow color. Turn off the mixer and lift the beaters a little. If the yolks flow back into the bowl in ribbons, they’re done.
For fillings, choose foods the family likes. Possibilities include:
• ricotta and/or mascarpone cheese and chopped fresh fruit, chopped Maraschino cherries or dried fruit bits
• softened cream cheese or whipped cream cheese and fruit preserves, jam or jelly
• fruit butter, such as apple butter
• fruit-flavored yogurt
• peanut butter and sliced bananas
• softened ice cream and chopped nuts
• softened sherbet or frozen yogurt
• marshmallow fluff with mini chocolate morsels