Linguine with Caramelized Onions

Name: Linguine with Caramelized Onions
Prep time: 10 min
Cook time: 50 min
Total time: 60 min
Yield: 4 servings
Cuisine: Italian
Ingredients: 450 g linguine (or other long pasta); 4 litres water (for boiling pasta); 1 tbsp salt (for pasta water); 3 large yellow onions (thinly sliced); 2 tbsp olive oil (extra virgin); 1 tbsp butter; 1 tsp salt; 1/2 tsp black pepper (freshly ground); 1 tbsp balsamic vinegar (optional); 1/4 cup Parmesan cheese (grated); 2 tbsp fresh parsley (chopped)

60 min 4 servings Medium

All Recipes

Delightful linguine with sweet and savoury caramelized onions for a comforting meal.

Prep

10 min

Cook

50 min

Total

60 min

Servings

Difficulty

Medium

Linguine with caramelized onions is a dish that combines the simplicity of pasta with the depth of flavour found in slowly caramelized onions. The sweetness of the onions complements the al dente texture of the linguine, creating a dish that is both comforting and elegant. This recipe is perfect for those nights when you want something quick yet delicious. With just a few ingredients, you can transform ordinary pasta into a gourmet experience. Caramelizing onions takes some patience, but the result is well worth the time, offering a rich, sweet flavour that elevates the entire dish.

Instructions

Prepare onions

Thinly slice 3 large yellow onions using a sharp knife or mandoline.

Pro tip: Uniform slices ensure even caramelization.

Caramelize onions

Heat 2 tbsp olive oil and 1 tbsp butter in a large skillet over medium heat. Add sliced onions and 1 tsp salt. Cook, stirring occasionally, for 30-40 minutes until golden brown. Add 1 tbsp balsamic vinegar if desired.

Pro tip: Stir frequently to prevent burning.

Boil pasta

In a large pot, bring 4 litres of water to a boil. Add 1 tbsp salt and 450g linguine. Cook until al dente, according to package instructions. Reserve 1 cup of pasta water, then drain.

Pro tip: Do not rinse the pasta after draining.

Combine pasta and onions

Add cooked pasta to the skillet with caramelized onions. Toss to combine, adding reserved pasta water as needed to achieve desired consistency.

Pro tip: Use pasta water to help the sauce cling to the pasta.

Season and serve

Season with 1/2 tsp freshly ground black pepper. Serve hot, garnished with 1/4 cup grated Parmesan cheese and 2 tbsp fresh chopped parsley.

Pro tip: Adjust seasoning to taste before serving.

💡

Tips & Tricks

Use a mandoline for even onion slices.
Stir onions frequently to prevent burning.
Add a splash of balsamic vinegar for extra depth.

Frequently Asked Questions

How long does it take to caramelize onions?

Caramelizing onions takes about 30-40 minutes over medium heat.

What type of pasta works best?

Linguine is ideal, but any long pasta like spaghetti or fettuccine works well.

Can I make this dish vegan?

Yes, substitute butter with more olive oil and omit Parmesan cheese.

How can I store leftovers?

Store in an airtight container in the fridge for up to 3 days.

What can I add for extra flavour?

Try adding garlic or a splash of white wine to the onions while cooking.

Serving Suggestions

Serve your linguine with caramelized onions alongside a simple green salad or some steamed vegetables to make a complete meal. This dish pairs wonderfully with a crisp white wine, such as a Sauvignon Blanc. If you have leftovers, store them in an airtight container in the refrigerator for up to three days. Reheat gently on the stovetop, adding a splash of water or broth to loosen the sauce as needed.

Nutrition per serving

450

Calories

12g

Protein

15g

Fat

Savoury vegetable stuffed cannelloni with a rich tomato sauce, perfect for a hearty and satisfying meal.

Medium75 min

See the recipe

Kitchen & BBQ gear

What we use for recipes like this

See the whole store

Kitchen Utensils · Measuring Cups

Measuring Cup and Measuring Spoon Set, 8PCS Liquid Measuring Cup Set or Dry Measuring Cup Set, Measuring Spoon Set with Stainless Steel Handle, Nesting Kitchen Measuring Tool

$13.99

Knives & Cutting · Kitchen Shears

Heavy Duty Kitchen Scissors, Spring-Loaded Poultry Shears for Chicken Bones

$28.99

Pit Boss Grills

6-QT Cast Iron Roaster with Lid

$89.99

Affiliate links. Prices come from Amazon and are refreshed at least every 24 hours.