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Savory French Onion Beef Sausage Rolls: Perfect Appetizer!

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These French Onion Sausage Rolls combine the rich flavors of classic French onion soup with savory beef sausage, all wrapped in flaky puff pastry. They’re the perfect crowd-pleasing appetizer for any occasion!

Ingredients

  • Yellow or sweet onions (like Vidalia)
  • Ground beef (80/20 blend)
  • Flaky puff pastry (store-bought or homemade)
  • Gruyère cheese (grated)
  • Fresh thyme (finely chopped) or dried thyme
  • Salt
  • Freshly ground black pepper
  • Nutmeg (pinch)
  • Butter
  • Olive oil
  • Non-alcoholic beef broth or vegetable broth
  • Balsamic vinegar
  • Worcestershire sauce
  • Egg (for egg wash)
  • Water (for egg wash)

Instructions

  1. Step 1: Caramelize the Onions – Slice the onions thinly. In a large, heavy-bottomed pan or Dutch oven, melt a generous knob of butter with a splash of olive oil over medium-low heat. Add the sliced onions, a pinch of salt, and stir to coat. Cover the pan for about 10-15 minutes to allow the onions to soften and release their moisture. Uncover and continue cooking over low heat, stirring every 5-10 minutes for 45 minutes to an hour until deeply golden-brown and jammy. Towards the end, add a splash of non-alcoholic beef broth or a tablespoon of balsamic vinegar to deglaze the pan. Spread the caramelized onions on a plate and let them cool completely.
  2. Step 2: Prepare the Beef Filling – In a large mixing bowl, combine the ground beef, grated Gruyère cheese, finely chopped fresh thyme (or a smaller amount of dried thyme), a good pinch of salt, and plenty of freshly ground black pepper. Once the caramelized onions are cool, add them to the beef mixture and gently mix until just combined.
  3. Step 3: Assemble the Sausage Rolls – Preheat your oven to 200°C (390°F) and line two baking sheets with parchment paper. On a lightly floured surface, unroll one sheet of puff pastry and cut it in half lengthwise. Shape half of the beef filling into a long log down the center of each pastry strip, leaving about an inch clear on each long edge. In a small bowl, whisk an egg with a splash of water for the egg wash. Brush one long edge of the pastry with the egg wash, fold the pastry over the filling, and press down to seal. Roll the sausage roll over so the seam is underneath and cut each long roll into 4-6 individual sausage rolls. Make small vents on top of each roll and brush the tops with the remaining egg wash.
  4. Step 4: Bake to Golden Perfection – Arrange the sausage rolls on the prepared baking sheets and bake for 20-25 minutes, or until the pastry is puffed and golden brown. Let them cool on the baking sheets for a few minutes before transferring to a wire rack.

Nutrition

Keywords: Patience with onions is key; don't rush the caramelization. Chill your filling and pastry for easier handling and flakier pastry. Season liberally and taste the filling before assembling the rolls.

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