Ingredients
Equipment
Method
Step-by-Step Instructions
- Slice the yellow onions into ⅛-inch rings for even caramelization.
- In a large Dutch oven, heat butter and olive oil. Add onions, salt, and pepper, and caramelize for 30-35 minutes.
- Add minced garlic and red pepper flakes. Cook for 30 seconds.
- Pour in water and half the evaporated milk, whisking to combine. Use cornstarch with the remaining milk to thicken the sauce.
- Bring to a boil. Stir in beef bouillon, Worcestershire sauce, soy sauce, oregano, paprika, and red pepper flakes.
- Add pasta and simmer uncovered for 20-25 minutes, stirring occasionally.
- Remove from heat, stir in Gruyere and Parmesan cheese until melted.
- Serve hot, garnished with fresh thyme or parsley.
Nutrition
Notes
For optimal caramelization, slice onions uniformly. Freshly grated cheese melts better for a smoother sauce.
