Caramelized Onion and Goat Cheese Tarts (Printable)

Buttery pastry shells filled with sweet golden onions and tangy goat cheese, baked until crisp and golden.

# What You'll Need:

→ Pastry Base

01 - 1 sheet puff pastry (approximately 9 oz), thawed if frozen

→ Caramelized Onions

02 - 3 large yellow onions, thinly sliced
03 - 2 tablespoons unsalted butter
04 - 1 tablespoon olive oil
05 - 1/2 teaspoon salt
06 - 1/4 teaspoon freshly ground black pepper
07 - 1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried thyme)
08 - 1 teaspoon granulated sugar

→ Cheese & Finishing

09 - 5 oz goat cheese, crumbled
10 - 1 large egg, beaten for egg wash
11 - 1 tablespoon fresh chives or parsley, finely chopped (optional)

# Directions:

01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper to prevent sticking and ensure easy cleanup.
02 - Melt butter with olive oil in a large skillet over medium-low heat. Add sliced onions, salt, and sugar. Cook slowly for 25–30 minutes, stirring frequently, until onions turn deep golden brown and develop a rich, sweet flavor. Add thyme and black pepper during the final 5 minutes of cooking.
03 - While onions caramelize, unroll the puff pastry and cut into 6 equal rectangles. Transfer to the prepared baking sheet. Using a sharp knife, score a 1/2-inch border around each rectangle, being careful not to cut completely through the dough. This creates a raised edge when baked.
04 - Brush the scored borders of each pastry rectangle with beaten egg using a pastry brush. This promotes even browning and creates a glossy, golden finish.
05 - Distribute the caramelized onions evenly within the scored borders of each pastry rectangle. Top generously with crumbled goat cheese, ensuring the cheese covers the onion layer.
06 - Place the baking sheet in the preheated oven and bake for 15–18 minutes. The pastry should be puffed, golden brown, and crisp, while the cheese should be softened and slightly melted.
07 - Remove from the oven and immediately sprinkle with finely chopped fresh chives or parsley if desired. Serve warm for the best flavor experience, or allow to cool to room temperature for a more structured appetizer.

# Expert Tips:

01 -
  • The combination of sweet onions and tangy cheese makes people pause mid conversation to ask what they're eating
  • They look impressive but secretly come together with minimal effort, especially if you caramelize onions ahead of time
02 -
  • Don't increase the heat to speed up onion caramelization, they'll burn and taste bitter instead of sweet
  • Let the tarts cool for at least 5 minutes before serving, otherwise the cheese will slide right off when someone takes a bite
03 -
  • Slice onions as thinly and uniformly as possible so they caramelize at the same rate
  • Keep a close eye on the pastry during the last few minutes of baking, as it can go from golden to burnt quickly

Go Back