If you're used to dry, dull Passover cake, then you'll be thrilled with this moist, flavorful recipe. We love it—especially the two-ingredient sauce. Keep in mind that you’ll need 1 large orange to yield the zest and juice for this cake; however, it can be made with a variety of citrus flavors. Substitute lemon or lime zest and juice for the orange zest and juice. Or forget the citrus juice and zest altogether and use 2 teaspoons of vanilla extract or 1 teaspoon of almond extract. Not Passover? Use 1 cup of flour instead of the matzo cake meal and potato starch, if desired.