# Step-by-Step Directions:
01 - Preheat your oven to 350°F and line a baking sheet with parchment paper.
02 - Separate the 4 eggs, placing whites in one large, clean bowl and yolks in separate small bowls.
03 - Add cream of tartar and a pinch of salt to the egg whites. Using an electric mixer, beat the whites until stiff peaks form.
04 - Gently fold in black pepper and Parmesan cheese (if using).
05 - Spoon the whipped egg whites onto the prepared baking sheet in 4 mounds. Use the back of a spoon to create a small well in the center of each mound.
06 - Bake for 5 minutes, then carefully add one yolk into each well. Return to oven and bake for another 4-5 minutes, or until the whites are set and lightly golden.
07 - Meanwhile, bring a saucepan of water to a gentle simmer. Add vinegar.
08 - Crack each egg into a small bowl, then gently slide into the simmering water. Poach for 3–4 minutes until whites are set but yolks remain runny. Remove with a slotted spoon and drain on paper towels.
09 - To serve, top each cloud bread with avocado slices and a poached egg. Season with salt, pepper, and optional garnishes.