Ingredients
Equipment
Method
Step-by-Step Instructions
- In a large skillet, heat olive oil and butter over medium heat. Add thinly sliced yellow onions and cook for about 30 minutes, stirring frequently until deep golden brown and soft.
- Stir in beef broth and white vinegar to the caramelized onions. Allow to simmer for 5 minutes over low heat, ensuring the mixture doesn't become too watery.
- Preheat oven to 375°F (190°C) and grease a mini muffin tin. Unroll the crescent roll dough and cut it into rectangles. Press each rectangle into the mini muffin tin to create cups.
- Spoon the caramelized onion mixture into each dough cup, filling about three-quarters full. Sprinkle grated Gruyère cheese over the filling.
- Bake filled muffin tin in the oven for 18-20 minutes, looking for a golden-brown color and bubbly cheese on top.
- Remove from the oven and allow to cool for 10 minutes. Garnish with fresh thyme leaves before serving.
Nutrition
Notes
For best results, caramelize the onions thoroughly for deeper flavor. Store leftovers in an airtight container in the fridge for up to 3 days or freeze for longer storage.
