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Slow Cooker Caramelized Onions Pasta

Slow Cooker Caramelized Onions Pasta

Slow Cooker Caramelized Onions Pasta is a comforting dish that combines the deep, sweet flavors of slow-cooked caramelized onions with your favorite pasta. This Italian-inspired recipe is perfect for busy days, allowing the slow cooker to do all the work while you enjoy a hearty and satisfying meal with minimal effort.
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Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Course Main Course
Cuisine American
Calories 400 kcal

Ingredients
  

  • 4 large yellow onions thinly sliced: The base of the dish, turning sweet and caramelized over time.
  • 3 tablespoons olive oil or unsalted butter: Adds richness and helps cook the onions evenly.
  • 1 teaspoon salt: Enhances the sweetness of the onions and aids in caramelization.
  • 1 teaspoon sugar optional: Boosts the natural sweetness of the onions.
  • 4 cloves garlic minced: Adds depth of flavor and complements the caramelized onions.
  • 1/2 teaspoon dried thyme: Adds an earthy aromatic flavor.
  • 1/2 teaspoon dried rosemary: Provides a fragrant woodsy note.
  • 1/4 cup dry white wine or vegetable broth: Deglazes the onions adding depth to the sauce.
  • 1 pound pasta spaghetti, fettuccine, or penne: The foundation of the dish, ready to absorb all the flavors.
  • 1/2 cup grated Parmesan cheese: Adds a salty nutty flavor to the final dish.
  • Fresh parsley chopped (optional for garnish): Adds a fresh, bright finish.
  • Salt and pepper to taste: Essential for seasoning the finished dish.

Instructions
 

  • Thinly slice the onions and add them to the slow cooker with olive oil or butter, salt, and optional sugar; stir to combine.
  • Cover and cook on low for 8-10 hours, stirring occasionally, until the onions are deeply golden and caramelized.
  • Stir in minced garlic, dried thyme, dried rosemary, and white wine or vegetable broth 30 minutes before the onions are done; continue cooking.
  • Cook the pasta according to package directions until al dente; reserve 1 cup of pasta water before draining.
  • Combine the caramelized onions with the cooked pasta, adding reserved pasta water as needed to create a silky sauce.
  • Stir in the grated Parmesan cheese; season with salt and pepper to taste.
  • Garnish with freshly chopped parsley and serve immediately.

Notes

For a creamier version, add a splash of heavy cream to the onion mixture before combining with the pasta. To make it heartier, include sautéed mushrooms or wilted spinach. For a vegan option, substitute Parmesan cheese with nutritional yeast and use olive oil instead of butter.

Nutrition

Calories: 400kcal
Keyword Easy Peasy Slow Cooker Peach Cobbler, Slow Cooker Caramelized Onions Pasta
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