Walnut Orange Passover Sponge Cake

Ingredients

 * 9 	 	egg
 * 1/4 	tsp 	salt
 * 18 	tbsp 	sugar
 * 1/2 	cup 	matzoh meal
 * 1/4 	cup 	potato starch
 * 1 	tsp 	vanilla
 * 1/2 	tsp 	orange extract
 * orange zest

Directions
Spoon batter into a 10-inch tube pan lined in the bottom with baking parchment or greased brown paper. Place in a preheated 375°F oven and immediately lower heat to 325 degrees. Make until cake springs back to the touch, about 50 minutes. Remove from oven, let cool. Before inverting/removing. For the passover confectionrss' sugar: Place sugar and potato starch in a food processor and process until blended, about 3 minutes. Use as a garnish by sifting over cake lightly and arrange shreds of orange peel on top.