Health meal, low carbs meals, keto meal

Slow Cooker Caramelized Onions Pasta

Slow Cooker Caramelized Onions Pasta is a comforting, delicious dish that makes use of the natural sweetness of caramelized onions. By using a slow cooker, you get perfectly caramelized onions with minimal effort, which form the basis of a rich and flavorful pasta sauce. This recipe is simple yet bursting with flavor, making it perfect for a cozy dinner. Let’s get started!

Table of Contents

Ingredients

For the Caramelized Onions

  • 4 large yellow onions, thinly sliced
  • 2 tablespoons olive oil
  • 1 tablespoon unsalted butter
  • 1 teaspoon salt
  • 1/2 teaspoon sugar
  • 1/4 teaspoon black pepper

For the Pasta

  • 12 oz pasta (such as linguine or spaghetti)
  • 1/2 cup vegetable or chicken broth
  • 1/2 cup heavy cream
  • 1/4 cup grated Parmesan cheese
  • 1 tablespoon balsamic vinegar
  • Fresh thyme or parsley, for garnish (optional)
  • Salt and black pepper, to taste

Instructions

Caramelize the Onions

  1. Prepare the Onions: Place the sliced onions in the slow cooker. Drizzle with olive oil and add the butter, salt, sugar, and black pepper. Stir to coat the onions evenly.
  2. Cook: Set the slow cooker on low and cook the onions for 8-10 hours, stirring occasionally, until they are golden brown and caramelized. If you’re in a hurry, you can set it on high for 4-5 hours, but the low setting yields the best results.

Cook the Pasta

  1. Boil the Pasta: When the onions are almost ready, bring a large pot of salted water to a boil. Cook the pasta according to the package instructions until al dente. Drain and set aside.

Make the Sauce

  1. Combine with Onions: Once the onions are caramelized, add the vegetable or chicken broth to the slow cooker. Stir well to deglaze the bottom of the cooker and incorporate the flavors.
  2. Add Cream and Pasta: Stir in the heavy cream and add the cooked pasta. Mix until the pasta is well coated with the creamy onion mixture.
  3. Finish: Add the grated Parmesan cheese and balsamic vinegar, stirring until well combined. Season with additional salt and black pepper, to taste.
  4. Serve: Transfer the pasta to serving bowls and garnish with fresh thyme or parsley if desired. Serve warm.

Cook’s Notes and Tips

  • Onion Choice: Yellow onions work best for caramelizing due to their natural sweetness, but you can also use red or white onions for a different flavor.
  • Stir Occasionally: Stir the onions every few hours while cooking to ensure even caramelization and prevent them from sticking to the sides of the slow cooker.
  • Balsamic Vinegar: The balsamic vinegar adds a touch of acidity that balances out the sweetness of the onions, enhancing the overall flavor of the dish.

Variations

  • Vegan Option: Use vegan butter and substitute the heavy cream with coconut cream or a dairy-free alternative.
  • Mushroom Addition: Add sliced mushrooms to the slow cooker along with the onions for an extra umami flavor.
  • Cheesy Bake: Transfer the cooked pasta to a baking dish, top with mozzarella cheese, and broil until bubbly for a cheesy twist.

Serving Suggestions

  • Garlic Bread: Serve with a side of garlic bread to soak up the delicious sauce.
  • Green Salad: Pair with a fresh green salad dressed with lemon vinaigrette for a light contrast.
  • Roasted Vegetables: Roasted vegetables, such as asparagus or Brussels sprouts, make a great accompaniment to this pasta dish.

Frequently Asked Questions (FAQs)

Can I Make the Caramelized Onions Ahead of Time?

Yes, you can make the caramelized onions ahead of time and store them in an airtight container in the refrigerator for up to 5 days. They also freeze well for up to 3 months—just thaw before using.

What Type of Pasta Works Best?

Long pasta like linguine, spaghetti, or fettuccine works well in this dish because it easily coats with the creamy onion sauce. However, you can use any pasta shape you prefer.

Can I Use Pre-Caramelized Onions?

If you have store-bought caramelized onions or a batch you made earlier, you can use them to save time. Just skip the slow cooker step and proceed with making the sauce.

How Do I Store Leftovers?

Store leftover pasta in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop or in the microwave, adding a splash of broth or cream to keep it from drying out.

Can I Make This Dish Gluten-Free?

Yes, simply use gluten-free pasta to make this dish suitable for those with gluten sensitivities.

Slow Cooker Caramelized Onions Pasta is a rich and comforting dish that’s sure to impress with its depth of flavor. The slow-cooked onions bring out a natural sweetness that pairs perfectly with the creamy sauce, making this pasta both satisfying and elegant. It’s an easy way to create a gourmet meal with minimal effort, perfect for a cozy dinner at home. Gather your ingredients, set your slow cooker, and get ready to enjoy this flavorful dish!

Happy Cooking!

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