Caramelized Onion Galette
Ready in 90 min. Dinner recipe. A rustic tart showcasing onions as the star vegetable with flaky pastry and savory herbs. Get step-by-step instructions, nu
Instructions
Step 1
Make the pastry: In a food processor, pulse flour and salt. Add cold butter and pulse until mixture resembles coarse crumbs. Gradually add ice water until dough just comes together. Form into a disc, wrap in plastic, and refrigerate for 30 minutes.
Step 2
Caramelize onions: In a large skillet over medium-low heat, melt butter with olive oil. Add sliced onions, salt, pepper, and sugar (if using). Cook, stirring occasionally, for 40-45 minutes until deeply golden brown and caramelized. Stir in thyme during last 5 minutes. Let cool slightly.
Step 3
Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.
Step 4
Roll out pastry: On a floured surface, roll chilled dough into a 12-inch (30cm) circle. Transfer to prepared baking sheet.
Step 5
Assemble galette: Sprinkle half the Gruyère over the center of the pastry, leaving a 2-inch (5cm) border. Spread caramelized onions evenly over cheese. Fold edges of pastry over filling, pleating as you go.
Step 6
Brush pastry edges with beaten egg. Bake for 25-30 minutes until golden brown and crisp.
Step 7
Let cool for 10 minutes before slicing. Garnish with parsley and serve with crème fraîche if desired.
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Ingredients
Nutrition Facts
Per serving
Approximate values based on standard ingredients
