Leek and Gruyère Frittata
A golden, fluffy frittata packed with sweet, caramelized leeks and nutty melted Gruyère cheese. This elegant yet simple dish comes together in one skillet and works beautifully for brunch, lunch, or a light dinner with a simple side salad.
For 8 servings
- prep
Preheat the oven and prepare the skillet.
Position an oven rack in the upper third of the oven and preheat to 350°F (175°C).
- mix · ~2 min
Whisk the egg mixture.
1.In a large mixing bowl, crack the 8 eggs.2.Add milk, salt, black pepper, and nutmeg.3.Whisk vigorously until well combined and slightly frothy, about 1 minute.4.Stir in half of the grated Gruyère cheese.TIPWhisking until frothy incorporates air for a lighter, fluffier frittata. - saute · ~8 min
Sauté the leeks until soft and golden.
1.Melt butter in a 10-inch oven-safe skillet over medium heat.2.Add the sliced leeks and a pinch of salt.3.Cook, stirring occasionally, until softened and lightly golden at the edges, about 6 to 8 minutes.4.Spread the leeks evenly across the bottom of the skillet.TIPDon't rush the leeks — gentle cooking brings out their natural sweetness without burning. - assemble · ~2 min
Pour the egg mixture over the leeks.
1.With the skillet still over medium-low heat, pour the egg mixture evenly over the sautéed leeks.2.Let it cook undisturbed until the edges just begin to set, about 2 minutes.3.Sprinkle the remaining Gruyère cheese over the top.TIPStarting on the stovetop gives the bottom and edges a head start before the oven finishes the top. - bake · ~12 min
Bake until puffed and golden.
Transfer the skillet to the preheated oven. Bake for 10 to 12 minutes, or until the frittata is puffed in the center, set, and lightly golden on top. The center should spring back when gently pressed.
TIPWatch carefully in the last 2 minutes — you want it just set, not overbaked and rubbery. - rest · ~5 min
Rest briefly before slicing.
Remove from the oven and let the frittata rest in the skillet for 5 minutes. It will settle slightly and be easier to slice.
- serve
Garnish with chives and serve.
Slide the frittata onto a cutting board or serve directly from the skillet. Sprinkle with fresh chopped chives. Slice into 8 wedges and serve warm or at room temperature.
TIPA frittata is delicious warm or at room temperature, making it perfect for entertaining.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Slice leeks into thin half-moons and rinse well in a colander to remove any hidden grit.
- 2Use a 10-inch oven-safe skillet (preferably cast iron or stainless steel) for even cooking.
- 3Whisk the eggs until slightly frothy to incorporate air for a lighter, fluffier texture.
- 4Cook the leeks over medium heat, stirring occasionally, until they are softened and lightly golden at the edges.
- 5Let the frittata rest for 5 minutes after baking so it sets completely and slices cleanly.
- 6For best results, serve warm or at room temperature — the flavor of the Gruyère shines at either temperature.
Adapt it for your goals.
Vegetable-loaded
Add 1 cup of wilted spinach, sautéed mushrooms, or roasted red peppers along with the leeks for extra color and nutrients.
herb freshHerb-fresh
Swap chives for fresh thyme or tarragon (1 teaspoon chopped) stirred into the egg mixture for an aromatic twist.
cheese swapCheese-swap
Replace Gruyère with sharp cheddar, fontina, or goat cheese for a different flavor profile — crumble goat cheese on top before baking.
dairy freeDairy-free
Use a neutral oil like avocado oil instead of butter and substitute the milk with unsweetened oat or almond milk for a lactose-friendly version.
Why this is on our healthy list.
Rich in Protein
Eggs provide high-quality protein that supports muscle maintenance and keeps you full longer.
Good Source of Vitamin K
Leeks are rich in vitamin K, which plays a key role in bone health and blood clotting.
Calcium from Gruyère
Gruyère cheese contributes calcium for strong bones and teeth, along with a satisfying savory flavor.
Low in Carbohydrates
This frittata is naturally low in carbs, making it a suitable option for low-carb or keto-friendly meals.
Frequently asked questions
Yes, you can bake it up to a day ahead, cool completely, cover, and refrigerate. Reheat gently in a 300°F oven or serve at room temperature.







