Separate the egg whites and egg yolks. Place the whites in a stand mixer with a whip attachment. Add the cream of tartar and beat on high until the froth turns into firm meringue peaks. Move to a separate bowl. (Whites will not whip if there is any yolk mixed in. Be careful when separating.)
Place the cream cheese in the empty stand mixing bowl. Beat on high to soften. Then add the egg yolks one at a time to incorporate. Scrape the bowl and beat until the mixture is completely smooth. Beat in the cinnamon, stevia, and salt.
Gently fold the firm meringue into the yolk mixture. Try to deflate the meringue as little as possible, so the mixture is still firm and foamy.
Preheat a large non-stick skillet. Spray the skillet with nonstick oil spray. Spoon 1/4 cup portions of the foam into the hot skillet and spread into even 3-4 inch circles, 3/4 inch high. Cook for 2-3 minutes per side. Do not press the pancakes down with a spatula.
Continue with the remaining pancake batter. Serve warm!
All varieties of stevia vary in potency. Read the package label and use the amount that equals 2 tablespoons of granulated sugar.