Egg White Omelet Recipe

Prepare egg whites

Separate 4 large eggs and reserve the yolks for another use. In a medium bowl, combine 4 large egg whites and the optional 1/2 whole egg if using (this adds a touch of richness). Add 1 tbsp milk or water, a pinch of fine sea salt, and a pinch of freshly ground black pepper. Whisk vigorously until mixture is frothy and slightly thickened, about 20–30 seconds.

Prepare scallions

Trim root ends and any wilted tips from 3 scallions. Slice white and light-green parts into 1/8–1/4 inch slices. Reserve dark-green tops for garnish if desired.

Grill scallions

Heat a small nonstick or cast-iron skillet over medium-high heat until hot. Add 1 tsp olive oil and 1 tbsp unsalted butter. When butter foams, add sliced scallions in a single layer. Cook, turning occasionally, until they are charred at the edges and softened, about 3–4 minutes. Season lightly with a pinch of salt. Transfer scallions to a plate and set aside.

Grate cheese

Grate 1 oz white cheddar finely so it will melt quickly. Keep ready near the stove.

Heat an 8–10 inch nonstick skillet over medium-low heat. Add 1 tsp butter or lightly coat the pan with cooking spray and let it melt/settle so the surface is evenly coated but not smoking.

Give the egg-white mixture one quick re-whisk. Pour the whites into the skillet and immediately reduce heat to low. Using a rubber spatula, gently pull the cooked edges toward the center while tilting the pan so uncooked whites flow to the edges. Continue for 1–2 minutes until the surface is mostly set but still slightly glossy on top.

Evenly distribute the grilled scallions over one half of the omelet. Sprinkle the grated white cheddar (1 oz) over the scallions. If using, add chopped dark-green scallion tops or 1 tsp chopped chives.

Using the spatula, fold the plain half of the omelet over the filling to form a semi-circle. Let the omelet sit in the pan for 30–60 seconds to allow the cheese to melt through residual heat. If needed, cover the pan briefly (10–15 seconds) to help melting without overcooking.

Slide the omelet onto a plate, season with an extra pinch of salt and pepper if desired, and finish with a tiny squeeze of lemon (about 1/4 wedge) to brighten flavors if using.