Dinner

Creamy Vegan Caramelized Onion Pasta Recipe

Name: Creamy Vegan Caramelized Onion Pasta Recipe
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Cuisine: Vegan
Ingredients: 8 ounces (453.59 g) Pasta of choice; 3-4 Large onions, thinly sliced; 3 tbsp (44.36 ml) Olive oil; 1 tbsp (8 g) Vegan butter, or regular butter, optional; 1 tsp (4 g) Sugar, optional; 4 cloves (12 g) Garlic, minced; ¾ cup (90 g) Oat cream, or regular heavy cream; 1 cup (100 g) Vegan Parmesan cheese, or regular Parmesan cheese; 2 tbsp (29.57 ml) Chili oil; Seasonings to taste: smoked paprika, onion powder, garlic powder, dried oregano, sweet paprika, salt, and pepper; Fresh parsley, chopped

ByHugo Harnd March 22, 2026March 22, 2026

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Introduction

This creamy vegan caramelized onion pasta offers a rich, flavorful twist on a classic comfort dish. Sweet caramelized onions combine with a luscious plant-based sauce, making it perfect for a satisfying weeknight meal. It’s easy to make and sure to please vegans and non-vegans alike.

A close-up of creamy spaghetti pasta mixed with a rich orange sauce, covered with small pieces of dark red sun-dried tomatoes and sprinkled with fresh green chopped parsley. The pasta strands are twisted and coated evenly with the sauce, which has a smooth and slightly shiny texture. The dish sits on a white marbled surface, enhancing the vibrant colors of the pasta and toppings. photo taken with an iphone --ar 4:5 --v 7

Ingredients

8 ounces (453.59 g) pasta of choice
3-4 large onions, thinly sliced
3 tbsp (44.36 ml) olive oil
1 tbsp (8 g) vegan butter, or regular butter (optional)
1 tsp (4 g) sugar (optional)
4 cloves (12 g) garlic, minced
¾ cup (90 g) oat cream, or regular heavy cream
1 cup (100 g) vegan Parmesan cheese, or regular Parmesan cheese
2 tbsp (29.57 ml) chili oil
Seasonings to taste: smoked paprika, onion powder, garlic powder, dried oregano, sweet paprika, salt, and pepper
Fresh parsley, chopped (for garnish)

Instructions

Step 1: Heat olive oil and optional butter in a skillet over medium heat. Add the sliced onions and season with salt and pepper. Cook until softened, about 5 minutes.
Step 2: Stir in the minced garlic and optional sugar. Add 1 cup of water, then cook the onions for 25–30 minutes, stirring occasionally until they are golden and caramelized. Add more water if needed to deglaze the skillet.
Step 3: While the onions cook, bring a large pot of salted water to a boil. Cook the pasta according to package instructions until al dente. Reserve 1 cup of pasta water, then drain the pasta.
Step 4: Add smoked paprika, onion powder, garlic powder, dried oregano, sweet paprika, and chili oil to the caramelized onions. Stir well to combine.
Step 5: Stir in the Parmesan cheese and oat cream, simmering the sauce for 5–7 minutes until it thickens. Adjust the sauce consistency by gradually adding reserved pasta water if needed.
Step 6: Add the cooked pasta to the skillet, tossing gently to coat the noodles evenly with the sauce. Taste and adjust seasoning as desired.
Step 7: Garnish with fresh chopped parsley and additional Parmesan cheese if desired. Serve immediately while hot.

Tips & Variations

For a deeper onion flavor, use a mix of yellow and sweet onions.
Swap oat cream for coconut cream or cashew cream for a different plant-based option.
Add sautéed mushrooms or spinach for extra texture and nutrients.
Use gluten-free pasta if you prefer a gluten-free meal.

Storage

Store leftover pasta in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove or in the microwave, adding a splash of water or plant-based milk to loosen the sauce if it thickens too much.