French Onion Galette

The trick to making this simple, stylish dish taste incredible is this: Don't rush. You want to really caramelize the onions to give the galette a silky texture and deep, rich, decadent flavor. But when you're done, you'll have a rustic, free-form version of a savory tart that's pretty enough to serve guests. Or make one for yourself on a quiet Sunday, and keep leftovers for weekday lunches. You can serve it with a slice with a simple side salad for a vegetarian-friendly lunch or dinner, or pair with your favorite eggs for a decadent brunch.

French Onion Galette sliced for serving
Photo: Aaron Kirk
Active Time:
1 hr
Total Time:
1 hr 15 mins
Nutrition Profile:


  • 2 tablespoons canola oil

  • 3 pounds yellow onions, cut into 1/2-in. wedges

  • 4 thyme sprigs

  • 1 teaspoon kosher salt

  • 1 teaspoon sherry vinegar

  • ½ teaspoon black pepper

  • ½ (16-oz.) pkg. refrigerated whole-wheat piecrusts

  • 1 ½ ounces Gruyère cheese, shredded (about 1/3 cup)

  • 1 large egg, lightly beaten

  • 1 teaspoon water


  1. Preheat oven to 425ºF. Heat oil in a Dutch oven over medium. Add onions, thyme and salt; cook, partially covered, stirring occasionally, until onions caramelize, about 45 minutes. Discard thyme stems. Stir in vinegar and pepper.

  2. Unroll piecrust on a sheet of parchment paper, and use a rolling pin to roll out to a 13-inch circle. Pile onion mixture in middle of circle and spread evenly, leaving a 2-inch border; sprinkle cheese over onion filling. Fold edges of dough over filling.

  3. Whisk together egg and water in a small bowl; brush over dough. Bake in preheated oven until crust is golden, about 20 minutes. Let cool 5 minutes before slicing.

Nutrition Facts (per serving)

332 Calories
20g Fat
35g Carbs
8g Protein
Nutrition Facts
Servings Per Recipe 6
Serving Size 1 slice
Calories 332
% Daily Value *
Total Carbohydrate 35g 13%
Dietary Fiber 7g 25%
Total Sugars 10g
Protein 8g 16%
Total Fat 20g 26%
Saturated Fat 8g 40%
Sodium 535mg 23%

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

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