Ingredients
Equipment
Method
Step-by-Step Instructions
- In a large skillet, heat 2 tablespoons of olive oil and 2 tablespoons of butter over medium heat. Add 4 sliced yellow onions and season with salt and pepper. Cook for about 30 minutes, stirring occasionally, until the onions are a deep golden brown.
- Stir in 1 cup of beef broth and 1 tablespoon of white vinegar. Allow to simmer for 5 minutes until most of the liquid has been absorbed.
- Preheat your oven to 375°F (190°C). Unroll the crescent roll dough on a floured surface and cut into 3-inch squares. Press each square into a greased mini muffin tin.
- Spoon the caramelized onion mixture into each dough cup, filling them about three-quarters full. Sprinkle grated Gruyère cheese on top of each cup.
- Place the mini muffin tin in the oven and bake for 18-20 minutes until golden brown and bubbly.
- Remove and let cool for about 10 minutes. Garnish with fresh thyme leaves before serving warm.
Nutrition
Notes
Store leftovers in an airtight container in the fridge for up to 3 days. For best texture when reheating, use the oven instead of the microwave.
