There’s a moment at the brunch table when someone takes a bite of your omelette, pauses, and says: “Wait. What is that? What did you add to this?” That’s the moment this recipe was made for.

The secret is Cucumber Bubbles. Not as a drink alongside the dish, but as an ingredient inside it. A splash of sparkling water beaten into egg whites is a classic chef’s trick for achieving soufflé-like lift: the CO₂ bubbles expand in the heat, turning a humble omelette into something cloud-light and dramatic. Cucumber Bubbles does all of that, and then adds the faintest cool, garden-fresh note that plays in perfect harmony with the zucchini, peas, and dill. It’s subtle enough that people can’t quite place it. It’s distinct enough that they absolutely notice in the best way possible.

This is the kind of recipe that becomes a signature dish. And the best part is, you don’t have to tell anyone how easy it was. Ready to get whipping? Let’s fire it up.

What You’ll Need:

• 3 large eggs, separated
• 2 ½  fluid ounces Cucumber Bubbles (the secret ingredient!)
• ⅓  teaspoons cream of tartar
• ⅓  cups parmesan, finely grated (divided)
• 1 tablespoons fresh chives, chopped
• 1 tablespoons fresh dill, chopped (plus fronds for garnish)
• 2 tablespoons olive oil (divided)
• ½  small courgette (zucchini), sliced into half moons
• 1 garlic clove, grated
• 4 radishes, thinly sliced
• ½  cups frozen peas, thawed
• 1 pinch salt and freshly cracked black pepper

What You’ll Do:

1. Prep the eggs: Separate 3 large eggs, placing the yolks in a small bowl and the whites in a large, very clean bowl (any trace of fat will prevent the whites from whipping properly). Set both aside.
2. Sauté the veggies: Heat 1 tbsp olive oil in a skillet over medium heat. Add the courgette half moons and cook for 2 minutes until just softened. Add the grated garlic and sliced radishes and cook another 2–3 minutes until the radishes lose their raw edge. Remove from heat, season generously with salt and black pepper, and stir in the thawed peas. Keep warm while you make the soufflé base.
3. Whip the whites: Pour the Cucumber Bubbles and cream of tartar into the egg white bowl. Using a hand mixer or a large whisk, beat to medium peaks. You want them billowy and cloud-like, not stiff and dry. The carbonation in the Cucumber Bubbles  helps the whites whip up light and airy while adding that faint cool, fresh note. Don’t rush this step; the air you build here is what makes the omelette soar.
4. Fold in the yolks and flavor: Add the egg yolks, chopped chives, chopped dill, and half the grated parmesan to the whipped whites. Season with salt and pepper. Using a spatula, gently fold everything together with slow, deliberate strokes. You’re preserving every air bubble you just worked to build. A few streaks of yolk remaining is perfectly fine. Stop when it’s just combined.
5. Cook the soufflé base: Heat your broiler to medium. In a small non-stick, oven-safe skillet (around 8 inches), warm the remaining 1 tbsp olive oil over low–medium heat. Slide the soufflé mixture in and gently shake the pan to spread it to the edges. Cook undisturbed for 1 minute — the bottom will just begin to set while the top remains custardy.
6. Finish under the broiler: Scatter the remaining parmesan evenly over the top and transfer the pan under the broiler. Cook for 1–2 minutes and watch it closely until the cheese is melted and lightly golden and the top is just set with the faintest wobble. Remove from the broiler and let rest in the pan for 2 minutes. The carry-over heat will finish the job without drying it out.
7. Fill, fold, and serve: Spoon the warm veggie mixture over one half of the omelette. Carefully fold the other half over to encase the filling. Slide onto a warm plate and top with extra grated parmesan, a scattering of chives, and a few dill fronds. Serve immediately!  Soufflés wait for no one.

  TIPS + NOTES  

• Timing is everything: Have your veggie filling fully ready before you start whipping the egg whites. Once the soufflé mixture hits the pan, you have about 8 minutes from whip to plate. Prep everything in advance and this recipe is completely stress-free.
• Cheese swaps: No parmesan on hand? Gruyère gives a slightly nutty, more melty result. A sharp aged pecorino adds a bolder, saltier edge. Either works beautifully, just grate it as finely as possible so it incorporates without weighing the eggs down.
• The clean bowl rule: Even a tiny amount of egg yolk or grease in your white-whipping bowl will prevent the whites from reaching full volume. Wipe the bowl and whisk with a small piece of paper towel dipped in white vinegar before you start. It takes ten seconds and makes a real difference.
• Make it your own: The veggie filling is a template, not a rule. Asparagus tips, charred cherry tomatoes, sautéed mushrooms, baby spinach, really anything that cooks quickly and doesn’t release too much water works. The soufflé base stays the same regardless of what you tuck inside.