1. Preheat and line the pan

Heat the oven to 325°F with a rack in the center. Prepare the parchment-lined loaf pan before beginning to whip the whites.

Once the foam is ready, it should not wait while you search for equipment or cut parchment. Organizing the pan and ingredients first makes the mixing stage easier to complete gently and promptly.

2. Blend the cottage cheese and yolks

Place the measured cottage cheese and four egg yolks in the blender. Blend for about 45–60 seconds, or until the mixture looks smooth, scraping down the sides as needed.

The goal is to remove visible curds and create an even mixture. Avoid adding liquid. If the blender struggles, stop and scrape rather than leaving it running continuously or thinning the cheese.

Set the mixture aside while you prepare the foam. Do not taste the raw yolk mixture.

3. Whip the egg whites to soft peaks

Place the four whites in the clean, grease-free bowl. Beat on medium speed until foamy, then increase to medium-high as the foam develops.

Stop at soft peaks: when the beaters are lifted, the foam should form a peak whose tip bends over. The supplied two-to-three-minute time is only a guide; mixer power and bowl shape affect the schedule.

Watch the foam rather than the clock. It should have fine bubbles and an even appearance, without a pool of clear white at the bottom.

4. Add the powder gradually

Reduce the mixer to low. Sprinkle in the egg white powder in small additions, allowing each to disperse before adding more. Avoid dumping it in a heap.

Continue beating only as needed to produce a stable foam that holds firm peaks. The mixture may not have the glossy appearance of a sweetened meringue because there is no sugar here.

Stop if it becomes dry, clumpy, or crumbly. More beating will not necessarily fix an overworked foam or a powder that does not disperse well. The supplied additional two-to-three-minute timing is not a requirement.

5. Fold the mixtures together

Stir a small scoop of the whipped whites into the cottage cheese mixture to lighten it. Then add that lightened mixture back to the remaining whites in two or three portions.

Use a spatula to cut down through the center, sweep along the bottom, and lift the mixture over itself. Rotate the bowl between folds.

Fold until the color is reasonably uniform and there are no obvious pockets of dense cheese mixture at the bottom. Do not limit yourself to a fixed three or four strokes: too few can leave heavy streaks, while vigorous stirring deflates the foam. Use enough gentle folds to combine the batter.

6. Transfer without packing

Spoon the batter into the prepared pan. Spread it gently into the corners and level the top without pressing it down.

Do not bang the pan hard against the counter. The trapped air is the loaf’s main source of lift. A few large surface irregularities are less important than preserving the foam.

Bake promptly after mixing.

7. Bake until the center sets

Bake at 325°F, starting to check at about 40 minutes. The supplied 40–45-minute window is a starting point; the loaf may require longer depending on the pan, ingredients, and oven.

Look for a browned top and a center that feels set rather than liquid or sloshy. Check the middle with a thermometer: egg dishes should reach at least 160°F. Reaching that safety temperature does not guarantee the ideal bread texture, so the center also needs to look and feel baked.

If the top darkens before the middle is ready, loosely shield it with foil and continue baking. Avoid opening the oven repeatedly during the early part of the bake.

8. Cool gradually

Once the loaf is baked, switch the oven off. If your oven’s instructions permit cooling with the door slightly open, let the loaf stand inside for about ten minutes with the door ajar. Otherwise, remove it and allow it to settle in the pan on a heat-safe surface.

Do not wedge the door open with a wooden spoon unless the appliance manufacturer specifically permits that practice. Gradual cooling may reduce abrupt settling, but it cannot prevent collapse caused by an underbaked or poorly mixed center.

9. Finish cooling and slice

Let the loaf stand in the pan for about ten minutes after removing it from the oven. Lift using the parchment sling and transfer carefully to a wire rack.

Cool completely before slicing, allowing approximately 45–60 minutes or longer if the center remains warm. Use a serrated knife with gentle strokes rather than pressing straight down.

The exact cooling schedule can vary, but refrigerate promptly within the safe limits discussed below. Do not leave an egg-and-dairy loaf out all day while waiting for its texture to improve.