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Savory Caramelized Onion and Gruyere Galette

savory caramelized onion and Gruyere galette | A freshly baked onion tart topped with caramelized onions and sprigs of thyme, resting on parchment paper on a wooden platter.

A Savory Caramelized Onion and Gruyere Galette is a rustic, free-form tart that's both elegant and comforting. With its flaky, buttery crust filled with sweet caramelized onions and nutty Gruyere cheese, this dish is perfect for impressing guests or enjoying a cozy night in. Whether you’re a seasoned cook or a beginner, this recipe breaks down the process step-by-step, making it easy and enjoyable to prepare.

What is a Galette?

A galette is a French pastry characterized by its free-form shape, often filled with sweet or savory ingredients. Unlike traditional tarts, a galette doesn’t require a pie pan, making it simpler to assemble and bake.

Cooking Method
Cuisine
Courses , ,
Difficulty Beginner
Time
Prep Time: 25 mins Cook Time: 45 mins Rest Time: 30 mins Total Time: 1 hr 40 mins
Cooking Temp 200  °C
Servings 6
Estimated Cost $  12
Calories 485
Best Season Suitable throughout the year
Dietary Vegetarian
Description

This Savory Caramelized Onion and Gruyere Galette is a simple yet elegant dish perfect for any occasion. The flaky, homemade crust envelops a luscious filling of caramelized onions and rich Gruyere cheese, creating a mouthwatering combination of textures and flavors. Easy to prepare and versatile, this galette is ideal for lunch, dinner, or as a standout appetizer at your next gathering.

Ingredients
    For the Dough:
  • 1.5 cups all-purpose flour
  • 1/4 tsp salt
  • 1/2 cup unsalted butter (cold, cubed)
  • 1/4 cup ice water
  • For the Filling:
  • 3 large onions (thinly sliced)
  • 2 tbsp olive oil
  • 1 tbsp unsalted butter
  • 1 tsp sugar
  • 1/2 tsp salt
  • 1/2 tsp thyme leaves (fresh (optional))
  • 1.5 cups Gruyere cheese (shredded)
  • 1 egg (beaten (for egg wash))
Instructions
  1. Step 1: Prepare the Dough
    • In a mixing bowl, whisk together flour and salt.
    • Cut in cold butter using a pastry cutter or fork until the mixture resembles coarse crumbs.
    • Gradually add ice water, one tablespoon at a time, mixing until the dough just comes together.
    • Form the dough into a disk, wrap it in plastic wrap, and refrigerate for 30 minutes.
  2. Step 2: Caramelize the Onions
    • Heat olive oil and butter in a skillet over medium heat.
    • Add sliced onions, salt, and sugar. Cook, stirring occasionally, for 25-30 minutes until golden brown and caramelized.
    • Stir in thyme leaves if using. Remove from heat and let cool slightly.
  3. Step 3: Assemble the Galette
    • Preheat your oven to 400°F (200°C).
    • Roll out the chilled dough on a floured surface into a 12-inch circle.
    • Transfer the dough to a parchment-lined baking sheet.
    • Spread the caramelized onions over the dough, leaving a 2-inch border around the edges.
    • Sprinkle Gruyere cheese evenly over the onions.
  4. Step 4: Fold and Bake
    • Fold the edges of the dough over the filling, pleating as needed to create a rustic look.
    • Brush the crust with beaten egg for a golden finish.
    • Bake for 40-45 minutes or until the crust is golden brown and crisp.
    • Allow the galette to cool for 5-10 minutes before slicing and serving.
Nutrition Facts

Servings 6


Amount Per Serving
Calories 485.44kcal
% Daily Value *
Total Fat 33.48g52%
Saturated Fat 17.91g90%
Cholesterol 108.71mg37%
Sodium 425.15mg18%
Potassium 185.16mg6%
Total Carbohydrate 31.74g11%
Dietary Fiber 2.12g9%
Sugars 4.12g
Protein 14.96g30%

Vitamin A 246.63 IU
Vitamin C 5.65 mg
Calcium 365.08 mg
Iron 1.83 mg
Vitamin D 0.34 IU
Vitamin E 1.39 IU
Vitamin K 5.5 mcg
Thiamin 0.3 mg
Riboflavin 0.3 mg
Niacin 1.98 mg
Vitamin B6 0.14 mg
Folate 30.64 mcg
Vitamin B12 0.62 mcg
Phosphorus 274.51 mg
Magnesium 27.75 mg
Zinc 1.74 mg

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Note

Serving Suggestions

This galette pairs beautifully with a fresh green salad or a bowl of warm soup. It’s equally delightful as a light lunch or a dinner party appetizer.

Keywords: Savory galette recipe, caramelized onion galette, Gruyere cheese tart, rustic tart recipe, vegetarian galette, French galette recipe, easy baking recipe, onion and cheese tart, quick meal idea, buttery crust recipe
A man sitting at a table with a dessert, smiling and holding a spoon, has whipped cream on his upper lip. A vintage poster of a man in the background.
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Food and Lifestyle Blogger

Hi, I'm Samantha, a full-time food blogger, mother of 2 beautiful daughters and a lovely wife. I live in New Jersey with my family. Loves traveling, sharing new recipes, and spending time with my family.

Conclusion

The Savory Caramelized Onion and Gruyere Galette is a versatile dish that’s as pleasing to the eye as it is to the palate. With its buttery crust, sweet caramelized onions, and nutty cheese, it’s bound to become a favorite in your recipe repertoire. Whether you’re hosting a gathering or simply indulging in a comforting meal, this galette is a must-try.

Informational Links

How to Master the Art of French Cooking

Guide to French Cheeses

All About Galettes