A delightful pasta dish featuring creamy blue cheese and sweet caramelized onions, perfect for a quick yet indulgent meal.
Bring a large pot of salted water to a boil.
Adding salt to the water enhances the pasta's flavor.
Cook the spaghetti until al dente, then drain.
Reserve some pasta water to adjust the sauce's consistency later.
Heat olive oil in a skillet over medium heat.
Ensure the skillet is hot before adding the onions to prevent sticking.
Add the onions and cook until caramelized, about 15 minutes.
Stir occasionally to prevent burning and ensure even cooking.
Add the garlic and cook for 2 minutes until fragrant.
Be careful not to burn the garlic as it can turn bitter.
Stir in the balsamic vinegar and remove from heat.
The vinegar adds a tangy depth to the onions.
Combine the cooked pasta, onion mixture, and blue cheese in a large bowl.
Mix quickly while the pasta is hot to melt the cheese evenly.
Serve immediately, garnished with additional cheese if desired.
Serve with a side of crusty bread for a complete meal.