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Caramelized Onion Goat Cheese Galette

Slow-sweet onions, fresh thyme, and tangy goat cheese make a relaxed vegetarian galette whose crisp all-butter crust is built to stand up to a simple green salad.

A golden folded galette holds caramelized onions, goat cheese, and thyme beside a crisp green salad.

This galette earns its ease from deliberate contrasts: a rough-edged, flaky crust holds silky onions and soft goat cheese without the precision of a tart pan. The work is mostly patience at the skillet, where the onions slowly become sweet enough to balance the cheese and a lemony salad.

Keep the butter cold

Visible pieces of cold butter are the point of this dough, because they leave small flaky pockets as the galette bakes. Stop adding water as soon as a squeezed handful holds, then rechill after rolling whenever the pastry loses its cool, firm feel.

Let the onions go deep

The onions need low heat and time rather than a shortcut. Cook them until they are mahogany-edged, glossy, and thoroughly sweet, then let them cool completely before they meet the dough; this is flavor-building and practical moisture control at once.

Cooled caramelized onions and goat cheese fill a cold pastry round with a bare border ready to fold. — Cooled caramelized onions and goat cheese sit inside the neat bare border before the galette is pleated.

Fold an even border

Leave a generous bare ring before adding the filling, then lift the crust in small, regular sections instead of trying to fold it all at once. Each pleat should overlap its neighbor by the same amount, giving the rim enough structure to contain the filling while leaving its center exposed.

Bake against a hot sheet

A preheated baking sheet gives the bottom crust an immediate burst of heat, which is particularly helpful with a moist onion filling. Bake until the outer edge is a deep gold, not merely pale brown, and check that the base feels crisp before pulling it from the oven.

A cut galette wedge shows crisp flaky crust, glossy caramelized onions, soft goat cheese, and thyme. — A deeply golden flaky edge frames glossy onions, softened goat cheese, and thyme leaves.

Caramelized Onion Goat Cheese Galette

6 servings

120 minutes total

Ingredients

• 1 1/4 cups all-purpose flour
• 1/2 tsp kosher salt, divided
• 10 tbsp cold unsalted butter, cubed
• 3 to 4 tbsp ice water
• 2 tbsp extra-virgin olive oil, divided
• 3 large yellow onions, thinly sliced
• 1 tsp fresh thyme leaves, divided
• 5 oz soft goat cheese, crumbled
• 1 large egg, beaten
• 1 tsp water
• 5 oz mixed tender greens
• 1 tbsp lemon juice
• 1 tsp Dijon mustard

Method

Make the cold dough
Pulse the flour and 1/4 tsp salt with the cold butter until pea-size pieces remain, then drizzle in 3 tbsp ice water just until the dough holds when squeezed; pat into a disk and chill for 30 minutes.
Look for: The dough is shaggy with visible butter pieces and holds together without feeling wet or smooth.
Caramelize the onions
Warm 1 tbsp olive oil in a wide skillet over medium-low heat, add the onions and remaining 1/4 tsp salt, and cook for 35 to 40 minutes, stirring often, until deeply amber, soft, and sweet; stir in half the thyme and cool completely.
Look for: The onions have reduced to a glossy amber tangle with no pale, raw-tasting pieces.
Heat the oven
Set a rack in the lower third, place a rimmed baking sheet on it, and heat the oven to 400 F so the galette base meets a thoroughly hot surface.
Look for: The baking sheet is heating in a fully preheated oven before the galette is assembled.
Roll the pastry
Roll the chilled dough between parchment sheets into a 13-inch round, then slide it on its parchment onto a second sheet pan and refrigerate for 10 minutes if it softens.
Look for: The round is about 1/8 inch thick and cool enough to lift at the edge without stretching.
Fill and fold
Scatter the goat cheese over the center of the cold pastry, leaving a 2-inch bare border; mound the cooled onions over it, then lift and pleat the border inward in even 1 1/2-inch folds without covering the center.
Look for: The filling is contained in a low, even layer and the pleats overlap consistently around an open center.
Bake until deeply golden
Brush the exposed crust with the egg wash, slide the parchment and galette onto the hot baking sheet, and bake at 400 F for 30 to 35 minutes until the pastry is deeply golden and the goat cheese is set.
Look for: The bottom is crisp when lifted with a spatula, and the folded edge is richly browned rather than blond.
Dress the greens
Whisk the lemon juice, Dijon mustard, remaining 1 tbsp olive oil, and a pinch of salt in a large bowl, then toss the tender greens just before serving.
Look for: The leaves are lightly glossy and dressed without a puddle collecting in the bowl.
Rest and serve
Rest the galette for 10 minutes so the cheese firms and the base stays crisp, scatter with the remaining thyme, cut into six wedges, and serve with the green salad.
Look for: The wedges cut cleanly and the warm filling stays in place instead of flowing onto the crust.