Prep your tools: Heat oven to 300°F (150°C). Line a large baking sheet with parchment paper.
Lightly grease if your parchment tends to stick.
Separate the eggs: Place egg whites in a clean, grease-free bowl and yolks in another. Make sure no yolk gets into the whites.
Blend yolks and cream cheese: Add the softened cream cheese, a pinch of salt, and optional seasonings to the yolks. Beat until smooth and silky with no lumps.
Whip the whites: Add cream of tartar (or a few drops of lemon juice) to the whites.
Beat with a hand mixer until stiff peaks form. The whites should stand tall and glossy.
Fold gently: Spoon a third of the whipped whites into the yolk mixture and fold to lighten. Add the rest and gently fold until just combined.
Don’t deflate the batter.
Portion onto the tray: Scoop 6–8 mounds onto the baking sheet, spacing them apart. Use the back of a spoon to smooth and shape into rounds about 1/2 inch thick.
Add cheese: Sprinkle Parmesan or cheddar evenly over the tops. Press lightly so it adheres.
Bake: Bake for 20–25 minutes, until golden on the edges and set in the center.
For extra color, add 2–3 minutes at the end.
Cool and lift: Let the rounds cool on the tray for 5 minutes, then transfer to a rack. They’ll firm up as they cool.
Serve: Enjoy warm as a snack or use as a bun, toast base, or mini “flatbread.”