Caramelized Onion Alfredo Pasta Sauce Recipe
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Jump to RecipeThis caramelized onion alfredo pasta sauce recipe is a rich and delicious dinner, full of flavor! Made with spices, garlic, and sweet onions.
It’s a simple alfredo recipe with a fun flavorful twist. Serve with a garlic knots and fresh chopped salad for a complete meal.
This Caramelized Onion Alfredo Pasta Recipe Is:
- Rich
- Thick
- Creamy
- Garlicky
- Made with Pantry Staple Ingredients
- Ready Quickly
What’s In This Alfredo with Caramelized Onions?
Be sure to visit the recipe card below for full ingredient amounts and recipe instructions!
- Onions: sliced into thin even strings
- Fettuccine: I used a long fettuccine pasta, but you can use linguine, spaghetti, angel hair, bucatini, or any other long pasta shape! You can use regular pasta, or even a gluten free variety if desired.
- Butter
- Garlic: you can use fresh garlic if you have it, or heirloom jarred garlic if you are making this pantry-staple friendly.
- Flour
- Milk
- Vegetable Stock
- Parmesan Cheese
- Garlic Salt: for a little extra flavor and spice in this pasta.
- Fresh Ground Pepper: I use tellicherry pepper corns because they have a nice flavor with a hint of spice, and are a great value for the quality of fresh pepper corns.
- (Optional) Parsley: to give the alfredo pasta sauce a bright fresh finish.
Easy Weeknight Pasta Recipes!
This caramelized onion alfredo is what I call an Easy Weeknight Meal – which is on your table in about 30 minutes or less. These quick and simple recipes are perfect for those nights when you want a home-cooked meal but don’t want to spend hours in the kitchen.
I have a whole section of The Herbeevore dedicated to Easy Weeknight Meals, that are great for the whole family. From soups and stews, to pastas and proteins – a tasty meal can be on your table in no time. Even faster than ordering takeout!
And if you love this recipe, check out my Oat Milk Mac and Cheese for a super creamy, decadent treat!
How Do I Make This Caramelized Onion Pasta Recipe?
- Caramelize the Onions: In a Dutch Oven or other heavy lidded pot, add the onions, olive oil, and sea salt. Sauté on low heat, and stir with a wooden spoon for 25 minutes until the onions begin to reduce. After 25 minutes, add the vegan Worcestershire sauce and sauté for 5 additional minutes.
- Cook pasta according to package instructions.
- While pasta is cooking, in a large pot heat butter over low heat. Add the garlic and sauté for 2 or 3 minutes until the garlic begins to brown. Sprinkle in the flour and stir until a thick paste forms.
- Add the milk, vegetable stock, garlic salt and pepper, and parmesan cheese to the pot. Stir well until a thick sauce forms. Add the caramelized onions and pasta to the sauce, toss well, and top with parsley and black pepper if desired.
- If sauce is too thick, add additional milk 1/4 cup at a time until the sauce reaches desired consistency. If sauce is too thin, add an additional tablespoon of flour until it reaches desired consistency.
More Easy Pasta Recipes You’ll Love!
Oat Milk Mac and Cheese Recipe (Gluten Free, Vegetarian)
Creamy Pumpkin Lentil Pasta Recipe (Vegan, Gluten Free)
One-Pot Pho Recipe (Vegan, Vegetarian, GF)
Instant Pot Pantry Pasta Recipe (Vegan, Gluten Free, Pantry Staple)
Vegan Chickpea Noodle Soup Recipe (High Protein, Gluten Free)
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Caramelized Onion Alfredo Pasta
Ingredients
For the Caramelized Onions
- 2 sweet onion thinly sliced
- 2 tablespoons extra virgin olive oil
- 1/4 teaspoon Sea Salt
- 1 tablespoon Worcestershire sauce
For the Pasta
- 8 ounces pasta of choice
- 4 tablespoons butter
- 4 cloves garlic minced
- 1/4 cup all-purpose flour
- 1/2 cup milk
- 1.5 cups Vegetable Stock
- 3/4 teaspoon garlic salt
- 1/4 teaspoon Black Pepper
- 3/4 cup parmesan cheese
- 1/4 cup fresh parsley optional
Instructions
- Caramelize the Onions: In a Dutch Oven or other heavy lidded pot, add the onions, olive oil, and sea salt. Sauté on low heat, and stir with a wooden spoon for 25 minutes until the onions begin to reduce. After 25 minutes, add the vegan Worcestershire sauce and sauté for 5 additional minutes.
- Cook pasta according to package instructions.
- While pasta is cooking, in a large pot heat butter over low heat. Add the garlic and sauté for 2 or 3 minutes until the garlic begins to brown. Sprinkle in the flour and stir until a thick paste forms.
- Add the milk, vegetable stock, garlic salt and pepper, and parmesan cheese to the pot. Stir well until a thick sauce forms. Add the caramelized onions and pasta to the sauce, toss well, and top with parsley and black pepper if desired.
- If sauce is too thick, add additional milk 1/4 cup at a time until the sauce reaches desired consistency. If sauce is too thin, add an additional tablespoon of flour until it reaches desired consistency.
Notes
- .Combine 1 cup oats, 4 cups water, and pinch of salt to a blender. Allow the ingredients to sit for 10 minutes before blending.
- Blend on high for 30 seconds. Strain immediently though a fine mesh strainer, cheese cloth, or a nut milk bag. Do NOT squeeze the oat milk, let it drain naturally. Squeezing it can cause it to become slimy.
Nutrition
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