Savory French Onion Sausage Rolls (Print Version)

# Ingredients:

→ Filling

01 - 450 g ground sausage (pork, chicken, or turkey)
02 - 2 large onions, thinly sliced
03 - 2 tablespoons olive oil
04 - 1 teaspoon fresh thyme or 0.5 teaspoon dried thyme
05 - Salt and freshly ground black pepper to taste

→ Pastry

06 - 1 package puff pastry (2 sheets, thawed)
07 - 1 egg, beaten

→ Optional Additions

08 - 60 g grated Gruyère cheese
09 - 1 tablespoon Dijon mustard

# Instructions:

01 - Heat olive oil in a skillet over medium heat. Add sliced onions and a generous pinch of salt. Cook slowly, stirring occasionally, until onions are deeply golden, approximately 15–20 minutes. Allow to cool.
02 - In a mixing bowl, combine ground sausage, caramelised onions, thyme, salt, and pepper. Add Gruyère cheese and Dijon mustard if using. Mix until fully incorporated.
03 - Preheat the oven to 200°C. Line a baking sheet with parchment paper.
04 - On a lightly floured surface, unroll puff pastry sheets and cut into rectangles approximately 10×15 cm. Place a portion of sausage filling along one long edge of each rectangle, fold pastry over, and seal the edges firmly with a fork. Place seam-side down on the prepared tray.
05 - Brush the tops of the pastry with beaten egg for a glossy finish.
06 - Bake in the centre of the oven for 20–25 minutes, or until the pastry is deeply golden and crisp. Allow rolls to cool slightly on a rack before serving.

# Notes:

01 - Ensure onions are thoroughly caramelised for maximum depth of flavour; undercooked onions will lack sweetness.