Preheat the oven to 350 degrees F.
In a medium mixing bowl, whisk together the eggs and oil. Add the sugar, matzo, potato starch, and salt and mix until blended. Stir in the apples.
Spray a 2 1/2-inch by 3 1/4-inch muffin tin with non-stick spray. Fill 3/4 full with the batter and dust with the cinnamon sugar. Bake until the tops spring back when pressed, about 15 to 18 minutes.
Cool on a rack and remove from the tin when they are at room temperature.
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