Slow Cooker Caramelized Onions Pasta

There’s something magical about the transformation of onions when they’re slow-cooked to perfection. What starts as a pungent, tear-inducing vegetable becomes a sweet, savory, and utterly delicious base for so many dishes. And when those caramelized onions meet pasta, it’s pure comfort food heaven. This Slow Cooker Caramelized Onions Pasta is a dish that embodies the simplicity and elegance of Italian cooking, where a few basic ingredients come together to create something truly special.

Perfect for those busy days when you need a hearty, homemade meal without spending hours in the kitchen, this recipe takes full advantage of your slow cooker. The long, slow cooking process draws out the natural sweetness of the onions, creating a deeply flavorful base for your pasta. And the best part? The slow cooker does most of the work while you go about your day.

Slow Cooker Caramelized Onions Pasta
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Ingredients: What You’ll Need
To create this comforting and flavorful dish, you’ll need the following ingredients:

4 large yellow onions, thinly sliced: The star of the dish, these onions will caramelize beautifully over time.
3 tablespoons olive oil or unsalted butter: Helps the onions cook evenly and adds richness to the dish.
1 teaspoon salt: Enhances the natural sweetness of the onions and helps with the caramelization process.
1 teaspoon sugar (optional, for extra sweetness): If you want to boost the sweetness of your onions, a little sugar goes a long way.
4 cloves garlic, minced: Adds a punch of flavor and complements the sweetness of the onions.
1/2 teaspoon dried thyme: Brings a subtle earthy flavor that pairs well with the onions.
1/2 teaspoon dried rosemary: Adds a fragrant, woodsy note to the dish.
1/4 cup dry white wine or vegetable broth: Deglazes the onions and adds depth to the sauce.
1 pound of your favorite pasta (such as spaghetti, fettuccine, or penne): The canvas for your delicious caramelized onions.
1/2 cup grated Parmesan cheese: Adds a salty, nutty flavor and helps to create a creamy sauce.
Fresh parsley, chopped (for garnish): Brings a pop of color and freshness to the dish.
Salt and pepper to taste: Essential for seasoning the final dish.
Slow Cooker Caramelized Onions Pasta
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Ingredient Notes & Tips