Caramelized Onion & Gruyère Galette
A rustic French tart featuring sweet, slow-cooked onions and nutty Gruyère cheese baked in a buttery, flaky pastry crust. This french-inspired pasta ready in about 75 minutes pairs all-purpose flour, cubed cold butter, ice water for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 390 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.
Ingredients
- 1 1/4 cups all-purpose flour
- 1/2 cup cubed cold butter
- 3 tbsp ice water
- 3 large thinly sliced onions
- 2 tbsp unsalted butter
- 1 tbsp balsamic vinegar
- 1 cup grated Gruyère cheese
- 1 tbsp chopped fresh thyme
- 1/2 tsp sea salt
- 1/4 tsp black pepper
Instructions
- Step 1: Make pastry: Pulse flour and 1/4 tsp salt in a food processor. Add cold butter cubes and pulse until mixture resembles coarse crumbs. Gradually add ice water, pulsing until dough just comes together. Form into a disc, wrap in plastic, and chill for 30 minutes.
- Step 2: Cook onions: Melt 2 tbsp butter in a skillet over medium-low heat. Add sliced onions and cook uncovered for 30-35 minutes, stirring occasionally, until deep golden brown and caramelized. Add balsamic vinegar and cook for 2 more minutes, then remove from heat.
- Step 3: Preheat oven to 375°F (190°C). Roll chilled dough into a 12-inch circle on a floured surface. Transfer to a parchment-lined baking sheet.
- Step 4: Spread caramelized onions evenly over dough, leaving a 1-inch border. Sprinkle grated Gruyère cheese, thyme, salt, and pepper over onions.
- Step 5: Fold edges of dough over filling, crimping gently to create a rustic border. Bake for 30-35 minutes until crust is golden brown and cheese is bubbly. Let rest 10 minutes before slicing.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Caramelized Onion & Gruyère Galette take to make?
Total time is about 75 minutes (40 min prep + 35 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 Caramelized Onion & Gruyère 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 all-purpose flour from drying out.
Can I substitute ingredients in Caramelized Onion & Gruyère 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 Caramelized Onion & Gruyère 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.
What goes well with Caramelized Onion & Gruyère Galette?
French pasta like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
What others are saying
- ★★★★★
This has become our go-to pasta dish. We make it weekly.
- ★★★★★
My partner, who's usually picky, absolutely loved this.
- ★★★★★
So much better than takeout. We'll never order french delivery again.
