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Caramelized Onion Pasta
This caramelized onion pasta recipe turns onions, garlic, dried pasta, butter, olive oil, and Parmesan into a sweet, creamy, deeply savory weeknight dinner.
👥 2 Servings⏱️ Prep & Cook: 1h🔥 Cook: 35 min👤 Samantha Seneviratne📖 epicurious
🥘 Ingredients
Check off ingredients as you prepare them:
🍳 Cookware
- ●pot
- ●dutch oven
- ●oven
- ●bowl
📝 Preparation Steps
1
Heat 2 Tbsp. extra-virgin olive oil and 2 Tbsp. unsalted butter in a medium Dutch oven or other heavy pot over medium until butter is melted. Add 2 lb. sweet or yellow onions (about 4 large), thinly sliced, a large pinch of kosher salt, and a large pinch of freshly ground black pepper; cook, stirring occasionally, until onions are very tender and deep golden brown, about ⏱️ 30 minutes. Add 4 garlic cloves, finely chopped, and cook, stirring, until fragrant, about ⏱️ 1 minute.
. extra-virgin olive oil2 Tbsp. unsalted butter2 Tbsp. sweet or yellow onions (about 4 large), thinly sliced2 lb
2
Meanwhile, cook 8 oz. linguine or other long strand pasta in a large pot of boiling salted water, stirring occasionally, until very al dente, about ⏱️ 2 minutes less than package directions. Drain, reserving 1½ cups pasta cooking liquid.
. linguine or other long strand pasta8 oz
3
Add pasta and 1 cup pasta cooking liquid to onion mixture and stir to combine. Add a small handful from 4 oz. Parmesan, finely grated (about 2 cups), and stir until melted. Repeat with remaining cheese, adding a handful at a time and adding more pasta cooking liquid as needed until a glossy sauce forms and coats pasta. Squeeze in juice from ½ lemon to taste and stir in ½ cup finely chopped parsley. Taste and season with more pepper if needed.
. Parmesan, finely grated (about 2 cups), plus more for serving4 oz
4
Divide pasta among shallow bowls and top with Parmesan and more pepper. Do Ahead: Onion and garlic mixture can be made 5 days ahead. Cover and refrigerate or freeze for up to 3 months. Editor’s note: This caramelized onion pasta recipe was first printed in April 2019; it has been edited for style. Head this way for more of our favorite pasta dinners →
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