Flaky Leek Galette is a make-ahead friendly savory tart with a crisp, buttery crust, tender leeks and kale, creamy mascarpone, and melted cheese. It bakes up golden, slices neatly, and feels special enough for brunch, lunch, or a simple supper.
This is the kind of bake that makes an ordinary meal feel a little more thoughtful without turning your kitchen upside down. You get a deeply savory filling, a beautifully layered crust, and a dish that works just as well for guests as it does for a quiet weekend meal.
The flavor combination is especially nice here. Sweet, softened leeks meet earthy kale, fresh herbs, rich mascarpone, and nutty cheese, while the seasoned egg mixture adds just enough structure to hold everything together once baked.
What makes this galette so rewarding is the contrast. The crust stays crisp and flaky around the edges, while the center turns creamy and tender. Even with the chill time, the hands-on part is very manageable, and a lot of the work can be done ahead.
Flaky Leek Galette Ingredients
Cold butter and mixed flours form the base of the crust and give it that delicate, layered texture. A little rye or whole wheat flour adds subtle depth without making the dough heavy.
Sugar, salt, vinegar, and ice water help balance the dough and bring it together. The vinegar supports tenderness, while very cold water keeps the butter from softening too soon.
Leeks are the star of the filling. Once cleaned well and cooked down, they become soft, sweet, and mellow, which is exactly what you want in a savory galette.
Kale adds body and a bit of earthiness. It cooks down with the leeks and gives the filling a more substantial, hearty feel.
Olive oil and garlic build the savory base. The garlic should be finely minced so it melts right into the vegetables rather than standing out too sharply.
Mascarpone creates a creamy layer between the dough and the filling. It adds richness and helps the galette feel silky in the center.
Shredded cheese brings melt, flavor, and structure. A cheese in the Gruyere or Comte style works especially well because it turns nutty and golden as it bakes.
Eggs do double duty here. They enrich the filling and also help create that light custard texture that sets beautifully once the galette cools a bit.
Dijon mustard and lemon juice brighten the filling and keep the richness from feeling too heavy. They bring balance more than overt sharpness.
Fresh sage and parsley make the filling taste finished and lively. They lift the leeks and cheese with just enough freshness.
Anchovy paste is optional, but it adds quiet depth rather than a fishy flavor. If you enjoy a more savory, layered filling, it is worth including.
Egg wash gives the crust its glossy, deeply golden finish and helps those folded edges look bakery-worthy.
How to Make This Flaky Leek Galette
STEP 1: Start with the dough. Pulse the flours with the sugar and salt, then add the chilled butter and pulse just enough to leave small visible pieces. After a brief chill, mix in the vinegar and ice water until the dough barely comes together. It should still look a little rough, which is what helps create flaky layers later.
STEP 2: Shape the dough into a square, wrap it, and chill it well before rolling. Then roll and fold it several times to build those buttery layers. This part is what gives the finished galette its crisp, puffed edges, so it is worth taking your time and keeping the dough cool throughout.
STEP 3: While the dough rests, prepare the filling. Cook the cleaned leeks, kale, garlic, and a little salt in olive oil until the vegetables soften. Let them sit covered for a few minutes so the kale finishes turning tender, then stir in the herbs. You want the mixture soft and flavorful, not wet.
STEP 4: In a separate bowl, whisk the eggs with the mustard, lemon juice, remaining salt, pepper, and anchovy paste if using. This mixture brings the filling together and helps it bake into a sliceable center instead of a loose pile of vegetables and cheese.
STEP 5: Roll the dough into a generous round on parchment, then spread the mascarpone over the center, leaving a border all the way around. Add the leek and kale mixture, then scatter over the cheese. Brush the exposed edge with egg wash, fold it up and over the filling, and pinch lightly where needed to help it hold its shape.
STEP 6: Pour the seasoned egg mixture over the filling, then brush the crust again with egg wash. Bake it hot at first so the crust gets a good lift, then lower the temperature and continue baking until the galette is deeply golden and the filling looks set. Let it cool before slicing so the layers stay crisp and the center settles properly.
Perfect Pairings
A simple green salad is one of the nicest things to serve alongside this galette. Something lightly dressed with vinaigrette works well because it adds freshness without competing with the creamy filling.
It also pairs beautifully with a bowl of light soup. A delicate vegetable soup or a smooth blended soup makes this feel like a complete lunch without becoming too heavy.
For brunch, you can serve it with fresh fruit and a crisp salad on the side. That combination keeps the plate balanced and lets the richness of the galette stay front and center.
Can I make the dough ahead of time?
Yes. The folded dough can rest in the refrigerator for up to three days, which makes this a very practical bake for entertaining. Let it sit at room temperature briefly before rolling so it softens just enough to handle without cracking.
Do I need to use the anchovy paste?
Not at all. The galette will still be full of flavor without it. Anchovy paste simply adds a deeper savory note in the background, so you can leave it out if you prefer a more straightforward leek, herb, and cheese flavor.
How do I keep the bottom crust from turning soft?
Cook the vegetables until tender but not watery, and avoid overloading the filling. Baking on a thoroughly preheated stone, cast-iron surface, or hot sheet also helps the underside crisp more quickly and evenly.
Can I serve this warm or at room temperature?
Both work well. Warm slices feel especially rich and comforting, while room-temperature slices hold together neatly and are great for brunch spreads, lunch boards, or casual entertaining.
Helpful Tips
- Clean the leeks very thoroughly, especially between the layers, so you do not end up with grit in the filling.
- Let the cooked vegetable mixture cool slightly before assembling to keep the dough from warming too fast.
- Cool the galette before cutting so the custard-like filling can settle and the slices stay cleaner.
Keeping Leftovers Fresh
Store leftover galette in the refrigerator, covered well, for up to 3 days. Once chilled, the slices firm up nicely, which makes them easy to reheat one portion at a time.
To reheat, place slices in a 350°F oven or toaster oven until warmed through and crisp again at the edges. This keeps the crust far better than microwaving, which can soften those flaky layers.
You can also freeze baked slices after they have cooled completely. Wrap them tightly and freeze for up to 1 month. Reheat from cold or thaw overnight in the refrigerator first, then warm in the oven until the center is hot and the crust has regained some of its texture.
Flaky Leek Galette
Ingredients
For the dough:
- 10 tablespoons unsalted butter well chilled and cut into 1/2-inch cubes
- 1 teaspoon granulated sugar
- 1 teaspoon white vinegar or apple cider vinegar
- 3/4 teaspoon fine salt
- 1/4 cup rye flour or whole wheat flour
- 1 1/4 cups all-purpose flour
- 7 tablespoons ice water
For the filling:
- 3 medium leeks
- 1 bunch kale stems discarded and leaves roughly chopped
- 2 tablespoons extra-virgin olive oil
- 2 cloves garlic minced very finely
- 1/2 cup mascarpone
- 1 cup shredded cheese such as Comte, Gruyere, or Emmental
- 2 eggs lightly beaten and brought to room temperature
- 1 tablespoon Dijon mustard
- 1 tablespoon freshly squeezed lemon juice
- 1 teaspoon anchovy paste optional
- 1 tablespoon finely chopped fresh sage
- 2 tablespoons chopped fresh parsley
- 1/2 teaspoon salt
- 1/4 teaspoon salt
- 1/4 teaspoon ground black pepper
For the egg wash:
- 1 large egg
- 1 tablespoon water
Instructions
- Pulse the all-purpose flour, rye or wheat flour, sugar, and 3/4 teaspoon salt in a food processor until evenly blended.
- Add the cold butter and pulse 3 to 4 times, just until the pieces are about the size of pinto beans.
- Transfer the mixture to a bowl and refrigerate it for 15 minutes.
- Remove the chilled mixture from the refrigerator, then add the vinegar and ice water. Mix gently until the dough begins to hold together; it may still look rough and somewhat shaggy, with a few dry patches remaining.
- Turn the dough out onto parchment paper or plastic wrap and shape it into a 4 x 4-inch square. Wrap tightly and chill for 45 minutes.
- Roll the dough into a rectangle measuring about 5 x 11 inches. Fold it widthwise in thirds, like a business letter, to create layered folds.
- Rotate the dough so a short end faces you, then repeat the rolling and folding process two more times.
- After the third fold, fold the dough in half and refrigerate for at least 1 hour, or for as long as 3 days. Before rolling, let it stand at room temperature for 20 minutes.
- Preheat the oven to 425°F. If using a pizza stone or cast-iron pan, place it in the oven as it heats.
- Trim and clean the leeks, then prepare the kale by removing the stems and roughly chopping the leaves.
- Warm the olive oil in a skillet over medium heat. Add the leeks, kale, garlic, and 1/4 teaspoon salt, then cook for about 8 minutes. Turn off the heat, cover the skillet, and let the vegetables sit for 5 to 10 minutes, until fully tender. Stir in the sage and parsley, then set aside.
- In a separate bowl, whisk together the lightly beaten eggs, anchovy paste if using, Dijon mustard, lemon juice, 1/2 teaspoon salt, and black pepper.
- Roll the dough on a sheet of parchment paper to about 1/8-inch thick, forming roughly a 14-inch round. Trim the edges with a sharp knife so the crust will puff more evenly.
- Spread the mascarpone over the dough, leaving a 2-inch border all around the edge.
- Arrange the cooked leek and kale mixture over the mascarpone, then scatter the shredded cheese over the top.
- Whisk the egg and water together for the egg wash, then brush the exposed 2-inch border with it.
- Fold the dough inward over the filling, overlapping the edges and pinching lightly every 2 to 3 inches to help secure the shape.
- Pour the seasoned egg mixture evenly over the filling, then brush the top of the crust with more egg wash.
- Transfer the galette on its parchment to the preheated stone, cast-iron surface, or a baking sheet. A pizza peel or cutting board may help with the transfer.
- Bake for 10 minutes at 425°F. Lower the oven temperature to 375°F and continue baking for 25 to 35 minutes, until the crust is deeply golden and well puffed.
- Let the galette cool for 20 minutes before slicing and serving.
