30-Minute Leek and Gruyère Savory Breakfast Scones

Name: 30-Minute Leek and Gruyère Savory Breakfast Scones
Prep time: 15 min
Cook time: 13 min
Total time: 28 min
Yield: 8 servings
Cuisine: French
Ingredients: 3 medium (300 g) leeks, light green and white parts, halved lengthwise and thinly sliced, halved lengthwise and thinly sliced; 1 tablespoon (14 g) unsalted butter; ¼ teaspoon (1½ g) kosher salt; 2 cups (240 g) all-purpose flour; 1½ teaspoons (6 g) baking powder; ½ teaspoon (2½ ml) freshly ground black pepper, freshly ground; ¾ teaspoon (4½ g) kosher salt; 6 tablespoons (85 g) unsalted butter, cold, cut into ½-inch cubes, chilled; 1 cup (100 g) Gruyère cheese, aged 12 months, finely grated; ½ cup (120 ml) buttermilk, cold, cold; 1 whole (50 g) large egg, beaten with 1 teaspoon water; ½ teaspoon (½ g) fresh thyme leaves, finely chopped (optional)

From the MyKitchenBank Kitchen

Tender, buttery scones studded with caramelized leeks and sharp Gruyère cheese. These French-inspired breakfast scones are ready in 30 minutes—perfect for a sophisticated morning. The leeks cook briefly until golden, then fold into cold butter-enriched dough for a flaky crumb and savory depth.

Prep: 15 min
Cook: 13 min
Wait: 2 min
Total: 30 min
Makes: 8 scones

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Ingredients

8 servings

3 medium (300 g) leeks, light green and white parts, halved lengthwise and thinly sliced, halved lengthwise and thinly sliced
1 tablespoon (14 g) unsalted butter
¼ teaspoon (1.5 g) kosher salt
2 cups (240 g) all-purpose flour
1½ teaspoons (6 g) baking powder
½ teaspoon (2.5 ml) freshly ground black pepper, freshly ground
¾ teaspoon (4.5 g) kosher salt
6 tablespoons (85 g) unsalted butter, cold, cut into ½-inch cubes, chilled
1 cup (100 g) Gruyère cheese, aged 12 months, finely grated
½ cup (120 ml) buttermilk, cold, cold
1 whole (50 g) large egg, beaten with 1 teaspoon water
½ teaspoon (0.5 g) fresh thyme leaves, finely chopped (optional)

Equipment (7)

Large skillet (10-inch / 25 cm)
Large mixing bowl
Box grater or microplane
Baking sheet
Parchment paper
½-inch (1.3 cm) round biscuit cutter (or drinking glass)
Bench scraper or knife

Steps

Before you start

Cut butter into ½-inch cubes and chill in the freezer for 10 minutes
Preheat oven to 425°F (220°C)
Line a baking sheet with parchment paper

1
Sauté the leeks
- Heat a 10-inch skillet over medium heat.
- Add 1 tablespoon butter and let it foam, about 30 seconds.
- Add the sliced leeks and ¼ teaspoon salt.
- Stir occasionally until the leeks soften and turn golden brown, 5 to 6 minutes.
- They should be translucent at the edges and caramelized in spots.
- Transfer to a small bowl and cool to room temperature while you prepare the dough.
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Ready when: Leeks are golden and tender, with some caramelized spots
Tip: Don't skip the cooling step—hot leeks will warm the butter and make the dough tough.
2
Mix dry ingredients
- In a large bowl, whisk together 2 cups flour, 1½ teaspoons baking powder, ½ teaspoon black pepper, and ¾ teaspoon salt.
- Make sure there are no lumps in the baking powder.
- Set aside.
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Ready when: Ingredients are evenly combined
Tip: Whisk the dry ingredients twice if you don't have a sifter—this aerates the flour for a lighter scone.
3
Cut in cold butter
- Add the 6 tablespoons of cold butter cubes to the flour mixture.
- Using a box grater, bench scraper, or two knives, cut the butter into the flour using quick, light motions until the mixture resembles coarse breadcrumbs with pea-sized pieces of butter visible.
- This should take 2 to 3 minutes.
- Work quickly so the butter stays cold.
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Ready when: Mixture resembles coarse breadcrumbs with visible pea-sized butter pieces
Tip: If the mixture starts to look greasy or powdery, you've overworked it—stop immediately. Cold butter = flaky scones.
4
Fold in cheese and leeks
- Add the grated Gruyère and the cooled leeks (including any liquid in the bowl) to the flour mixture.
- Using a wooden spoon or spatula, fold gently until the cheese and leeks are evenly distributed.
- Do not overmix.
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Ready when: Cheese and leeks are evenly distributed throughout
Tip: Fold by turning the bowl and scraping from the bottom—avoid stirring in circular motions, which develops gluten.
5
Add buttermilk and form dough
- Pour ½ cup cold buttermilk over the mixture.
- Fold gently until just combined and a shaggy, slightly wet dough forms.
- Do not knead.
- The dough should come together but still look rough and slightly dry in spots.
- If it seems too dry to hold together, add 1 tablespoon more buttermilk.
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Ready when: Dough just holds together when pressed, with visible dry and wet spots
Tip: Overmixing develops gluten and toughens the scones—stop as soon as the dough comes together.
6
Turn out and cut scones
- Turn the dough onto a lightly floured work surface.
- Gently pat it into a ¾-inch-thick disk, about 6 inches across.
- Do not knead or overwork.
- Using a ½-inch round biscuit cutter (or the rim of a drinking glass dipped in flour), cut 8 scones from the dough.
- Reroll scraps minimally and cut one or two more if needed, but handle them gently.
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Ready when: 8 round scones cut cleanly from the dough
Tip: Avoid twisting the cutter—press straight down and lift straight up. Twisting seals the edges and prevents rise.
7
Brush and bakeOven 425°F / 220°C
- Place the scones on the parchment-lined baking sheet about 1 inch apart.
- Brush the tops lightly with the beaten egg wash, and sprinkle with optional fresh thyme if using.
- Bake in a preheated 425°F (220°C) oven for 12 to 13 minutes until the scones are golden brown on top and a skewer inserted into the center comes out clean.
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Ready when: Scone tops are deep golden brown and a skewer inserted in the center comes out clean
Tip: Don't open the oven door in the first 10 minutes—a draft can cause them to fall.
8
Cool and serve
- Remove the baking sheet from the oven.
- Let the scones rest on the sheet for 1 to 2 minutes, then transfer to a wire rack or serve warm.
- They are best eaten within 2 hours of baking but still excellent at room temperature.
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Ready when: Scones are set enough to move without breaking
Tip: Serve while still warm with softened butter, crème fraîche, or a simple green salad.

Good to know

Tips

Keep all ingredients, especially butter and buttermilk, as cold as possible—this ensures a flaky crumb and prevents the dough from becoming sticky.
Leeks hold water; if your cooked leeks are very wet, drain them on paper towels before folding into the dough. Excess moisture can make scones dense.
For uniform baking, make sure all scones are roughly the same thickness. Uneven scones brown unevenly.
Serve scones warm for the best texture and flavor. Reheating dries them out slightly, so store them uncovered at room temperature if you plan to eat within a few hours.

Make ahead

Prepare the dough up to step 5 (just before adding buttermilk), cover tightly, and refrigerate for up to 4 hours. Add buttermilk and proceed from step 5. Scones taste best baked fresh, but you can wrap cooled scones and freeze for up to 1 month; reheat gently in a 300°F oven for 5 minutes.

Storage & reheating

Store cooled scones in an airtight container at room temperature for up to 1 day. They don't keep well beyond that due to the buttermilk. Freeze cooled scones for up to 1 month; thaw at room temperature for 1 hour or reheat gently in a 300°F (150°C) oven for 5 minutes. Do not refrigerate—cold temperatures dry them out.

Substitutions

Gruyère cheese, aged 12 months → aged Emmental or mature Cheddar. Use an assertive cheese with similar sharpness. Avoid mild or young cheeses, which lack depth.
leeks, light green and white parts, halved lengthwise and thinly sliced → caramelized onions (1½ cups cooked) or sliced scallions. If using scallions, add them raw in step 4 for a fresher bite. Use caramelized onions for a deeper, sweeter flavor.
buttermilk, cold → sour cream thinned with 2 tablespoons milk, or milk mixed with 1 tablespoon lemon juice. The acid in buttermilk activates the baking powder; substitutes must be similarly acidic.
baking powder → ½ teaspoon baking soda + ½ teaspoon cream of tartar. This produces the same rise. Mix with the dry ingredients, not separately.