Weeknight Savior: One-Bowl Cherry Tomato & Gruyère Slab Clafoutis
Growing up in Paris, clafoutis was strictly dessert—sweet cherries, thick batter. But during a frantic Bay Area brunch service, I needed a quiche alternative fast. No time to chill pastry or blind bake. Enter the savory slab clafoutis.
By baking this rich, custardy batter in a shallow sheet pan, we maximize the crust-to-crumb ratio. You get lacy, caramelized Gruyère edges while the center stays beautifully silky. Sweet cherry tomatoes blister whole in the high heat, turning into jammy pockets of flavor.
Why it works: High heat forces the eggs to puff rapidly, creating a soufflé-like lift before settling into a dense custard. No weeping, no soggy bottoms. Just whisk eggs, cream, flour, and aged Gruyère in one bowl. Pour over the tomatoes. Bake until you see a slight wobble in the center and deeply golden crusts.
Play with it: Swap tomatoes for roasted squash or toss in fresh thyme. Just remember, butter is not a garnish. Smear the pan generously.
Cami's shortcut note: Mix the batter the night before. The fridge is your friend. Let time do the work.
Don't skip this: Let it cool ten minutes before slicing. A piping hot clafoutis cuts tight like a bad alibi. We're not suffering for brunch, but we can wait ten minutes for perfection.
Featured Recipe
One-Bowl Cherry Tomato & Gruyère Slab Clafoutis
A traditional clafoutis is dessert; a savory one is a midday savior. By baking this rich, custardy batter in a shallow sheet pan, we maximize the lacy, caramelized Gruyère edges while the center stays silky. Sweet cherry tomatoes blister whole in the high heat, turning into jammy pockets of flavor. One bowl, no pastry rolling, zero compromise.
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Timeline
Ingredients
- 1 tbsp Cultured butter(Softened, for greasing the pan)
- 4 Large eggs(Room temperature)
- 1 tbsp Dijon mustard
- 3 tbsp Cultured butter(Melted and slightly cooled, for the batter)
- 1/2 cup All-purpose flour
- 1 cup Whole milk
- 1/2 cup Heavy cream
- 1.5 lbs Cherry tomatoes(Mixed colors, kept whole)
- 1.5 cups Gruyère cheese(Coarsely grated)
- 1 tbsp Fresh thyme leaves
- 1 tsp Flaky sea salt
- 1/2 tsp Black pepper(Freshly ground)
Instructions
- 1
Preheat your oven to 400°F (200°C). Generously grease a 9x13-inch quarter sheet pan with 1 tbsp cultured butter. Smear it everywhere. Butter is not a garnish; here, it's the barrier that guarantees those coveted crispy edges instead of a stuck mess.
3 min
Tip: A metal sheet pan is crucial here. It conducts heat rapidly, giving you a superior crust-to-crumb ratio compared to a ceramic baking dish.
- 2
In a large bowl, vigorously whisk together the 4 large eggs, 1 tbsp Dijon mustard, and 3 tbsp melted cultured butter. Add the 1/2 cup all-purpose flour and whisk until entirely smooth. Slowly stream in the 1 cup whole milk and 1/2 cup heavy cream, whisking gently just to combine. Do not overbeat once the dairy is in, or the custard will bake up tight like a bad alibi.
5 min
Tip: Why it works: Whisking the flour into the egg-fat mixture first prevents the lumps that usually plague thin batters. Silky batter equals silky custard.
- 3
Scatter the 1.5 lbs cherry tomatoes evenly across the buttered sheet pan. Top them with an even layer of the 1.5 cups Gruyère cheese and sprinkle over the 1 tbsp fresh thyme leaves.
2 min
Tip: Leave the tomatoes whole. If you cut them, their juices will bleed and turn your beautiful custard into a watery swamp.
- 4
Pour the batter gently over the tomatoes and cheese. Finish by scattering the 1 tsp flaky sea salt and 1/2 tsp black pepper evenly across the surface.
2 min
- 5
Bake on the middle rack for 25 to 30 minutes. You are looking for deeply golden, lacy edges and a center that has a slight wobble but zero standing liquid. The tomatoes should look blistered and furious.
30 min
Tip: Check at 25 minutes. If it's puffing wildly on the sides but pale in the center, rotate the pan.
- 6
Remove from the oven and let it cool in the pan for at least 10 minutes. The extreme puff will deflate—this is normal. Let time do the work as the custard finishes setting. Slice into large squares and serve warm. We're not suffering for lunch.
10 min
Tip: A sharply dressed, highly acidic arugula salad on the side is the perfect counterpoint to the rich Gruyère.
Chef's Notes
Cami's shortcut note: The fridge is your friend. You can blend the batter the night before and store it in an airtight container. A rested batter actually hydrates the flour better and yields an even more tender crumb. Just give it a good stir before pouring it into the pan. Don't skip the whole tomatoes—the joy of this dish is biting into them and experiencing that burst of concentrated summer sweetness against the savory, nutty cheese.
Camille Roux
Café-level bakes, weeknight methods, zero compromise.
Camille “Cami” Roux was born in Paris with flour in her hair and a healthy skepticism of culinary dogma. She grew up around neighborhood boulangeries that treated crust and crumb like religion—but what stuck with her wasn’t rigid tradition. It was the quiet precision: good butter that actually tastes like milk, patient fermentation that builds flavor for free, and desserts that know when to stop before they get cloying. After moving to the Bay Area, Cami trained in a bread-and-pastry scene obsessed with texture, naturally leavened doughs, and seasonal fruit—Tartine energy, minus the martyrdom. She became known for loaves that sing when they cool, jammy tarts with clean edges, and “how is this so good?” weeknight pastries made with a few smart shortcuts. Her motto is high impact, low fuss: splurge where it counts (butter, salt, time), streamline the rest (sheet pans, one bowl, cold-proofing). If it doesn’t improve flavor or structure, it doesn’t earn a step.