Marolles Market Herb-Flecked Potato Galette

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A rustic, flaky potato tart filled with caramelized onions and fresh herbs, inspired by Brussels' lively Marolles neighborhood markets. This general-inspired vegetarian (vegetarian) ready in about 75 minutes pairs medium russet potatoes, medium red onion, chopped fresh thyme for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 380 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 3.3 (12 ratings) Prep: 45 min Cook: 30 min Serves 6 General cuisine 380 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. Thinly slice potatoes (1/8-inch thick) using a mandoline or sharp knife, then soak in cold water for 10 minutes to remove excess starch; drain and pat completely dry.
  2. Step 2: Melt 2 tbsp butter in a skillet over medium heat. Add thinly sliced red onion and 1 tbsp chopped thyme, cooking for 12-15 minutes until deeply caramelized and golden, stirring occasionally.
  3. Step 3: In a bowl, mix 1/4 cup all-purpose flour, 1/2 tsp salt, and 1/4 tsp black pepper. Add 2 tbsp cold butter, cutting in with a pastry cutter until crumbly. Gradually stir in 3 tbsp ice water until dough forms a ball; chill for 30 minutes.
  4. Step 4: Roll dough into a 12-inch circle on a floured surface. Transfer to a parchment-lined baking sheet. Spread caramelized onions evenly over the dough, leaving a 1-inch border. Sprinkle with 1/2 cup grated gruyere and remaining 1 tbsp chopped thyme.
  5. Step 5: Fold the edges of the dough over the filling, then brush the crust with heavy cream. Bake for 25-30 minutes until golden brown and the potatoes are tender when pierced with a fork.

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Frequently asked questions

How long does Marolles Market Herb-Flecked Potato Galette take to make?

Total time is about 75 minutes (45 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Marolles Market Herb-Flecked Potato Galette?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep medium russet potatoes from drying out.

Can I substitute ingredients in Marolles Market Herb-Flecked Potato Galette?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Marolles Market Herb-Flecked Potato Galette for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Marolles Market Herb-Flecked Potato Galette vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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