Name: Vegan Caramelized Onion Pasta with Sun-Dried Tomatoes and Coconut Milk Recipe
Prep time: 15 min
Cook time: 55 min
Total time: 1 h 10 min
Cuisine: Vegan
Ingredients: 2 tbsp olive oil; 2 tbsp vegan butter; 5 yellow onions, thinly and evenly sliced; 1/2 tsp salt; 1 bulb garlic, minced (about 8-10 cloves); 12 oz uncooked spaghetti noodles (340g); 1/2 cup reserved pasta water (optional, for sauce stretching); 1/4 cup sun dried tomatoes in oil (50g); 2 tbsp chili crunch oil; 1 tsp oregano; 1 tsp basil; 1/2 tsp parsley; 1/4 tsp thyme; 1/4 tsp rosemary; 1/4 tsp marjoram; 1/4 tsp sage; 1/4 tsp garlic powder; Salt and pepper to taste (start with 1/8 tsp each); 2 tbsp low sodium soy sauce; 1 tbsp balsamic vinegar; 13.5 oz canned coconut milk (380g); 1/4 to 1/2 cup vegan parmesan (25-50g); Fresh parsley, chopped; Additional vegan parmesan; Additional chili crunch oil

Jump to Recipe· 4.3 from 50 reviews

If you’re craving something absolutely comforting yet delightfully vibrant, the Vegan Caramelized Onion Pasta with Sun-Dried Tomatoes and Coconut Milk Recipe is going to become your new favorite go-to. This recipe marries the sweet, slow-cooked depth of caramelized onions with the tangy brightness of sun-dried tomatoes and the luscious creaminess of coconut milk, creating a sauce that feels indulgent but is wonderfully plant-based. Each forkful delivers layers of flavor and texture that feel like a warm hug on a plate. Trust me, once you try this, you’ll want to make it again and again.

Ingredients You’ll Need

A top view of a silver metal pan with two handles, filled with caramelized onions. The onions are soft and golden brown in color, with some darker crispy edges. They have a slightly oily and shiny texture, spread evenly across the pan’s bottom. The pan is on a wooden surface with a visible grain pattern. photo taken with an iphone --ar 4:5 --v 7

The beauty of this dish lies in its simplicity—the ingredients are straightforward but oh-so-essential for building those rich, complex flavors. Each one brings something special to the party, whether it’s the silky texture, the pop of acidity, or the herby aromas.

2 tbsp olive oil: A heart-healthy fat that helps caramelize the onions beautifully and add richness.
2 tbsp vegan butter: Elevates the creaminess and adds a touch of indulgence.
5 yellow onions, thinly sliced: The star ingredient that creates that irresistibly sweet caramelized base.
1/2 tsp salt: Essential for enhancing flavor and helping the onions soften evenly.
1 bulb garlic, minced (8-10 cloves): Adds pungent depth and a lovely aroma as it cooks.
12 oz uncooked spaghetti noodles: The perfect canvas to soak up the sauce; reserve some pasta water to adjust sauce consistency.
1/4 cup sun-dried tomatoes in oil: Brings a tangy, intense burst of flavor and a beautiful pop of color.
2 tbsp chili crunch oil: Adds a subtle spicy kick with crunchy texture that amps up every bite.
1 tsp oregano: A warm, herbal note that complements the tomato’s acidity.
1 tsp basil: Classic pairing with tomatoes, bringing sweetness and freshness.
1/2 tsp parsley: A bright, mild herb to balance richness.
1/4 tsp thyme, rosemary, marjoram, sage each: A fragrant herbal bouquet that layers the sauce with complexity.
1/4 tsp garlic powder: Reinforces that garlicky goodness for depth.
Salt and pepper to taste: Start small and adjust as you go to bring out all flavors.
2 tbsp low sodium soy sauce: Adds umami and a subtle saltiness without overpowering.
1 tbsp balsamic vinegar: Injects a gentle tang and sweetness that balances the creaminess.
13.5 oz canned coconut milk: The creamy base that makes this pasta luxuriantly smooth and dairy-free.
1/4-1/2 cup vegan parmesan: Brings cheesy, nutty notes to finish the sauce beautifully.
Fresh parsley, chopped (optional): For a fresh pop of color and herbal brightness on top.

How to Make Vegan Caramelized Onion Pasta with Sun-Dried Tomatoes and Coconut Milk Recipe

Step 1: Caramelize the Onions

Start by heating olive oil and vegan butter in a large skillet over medium-low heat. Once melted, add your thinly sliced onions with half a teaspoon of salt. Stir to coat the onions evenly in the fat, then let them cook, stirring every 4-5 minutes for about 35-40 minutes. This slow process transforms the onions into soft, golden strands full of rich sweetness. Keep an eye on them—if they start to stick or brown too fast, lower the heat or add a splash of vegetable stock to keep them tender and prevent burning. Meanwhile, wait to start your pasta until the onions are nearly ready so everything comes together perfectly.

Step 2: Build the Flavor Base

Once those onions have caramelized to perfection, add the minced garlic, sun-dried tomatoes, and chili crunch oil to the pan. Stir it up and then sprinkle in your herbs: oregano, basil, parsley, thyme, rosemary, marjoram, sage, and garlic powder. Season with a touch of salt and pepper, but remember you can always add more later. Then, splash in the soy sauce and balsamic vinegar, scraping the bottom of the pan with a wooden spoon to capture all those tasty browned bits stuck to the skillet. This builds the umami-packed sauce foundation your pasta will love.

Step 3: Add Coconut Milk and Cook Pasta

Pour in the creamy canned coconut milk and gently stir to combine. Let it simmer for 3-4 minutes to thicken slightly and marry all those flavors together. At this point, cook your spaghetti noodles according to package instructions, reserving half a cup of pasta water before draining. This starchy water is a secret weapon to help loosen the sauce if needed in the final step.

Step 4: Toss Pasta with the Sauce

Now, add the cooked pasta straight into the pan with your luscious sauce, along with a quarter cup of vegan parmesan. Stir gently but thoroughly to coat every noodle in the creamy, flavorful mixture. If the sauce feels too thick, add reserved pasta water a few tablespoons at a time until it achieves a luscious, silky texture that clings nicely to the spaghetti.

Step 5: Finish and Serve

Top your pasta with extra vegan parmesan, an extra drizzle of chili crunch oil for a spicy crunch, and fresh chopped parsley if you like. This final flourish adds visual appeal and layers of texture and flavor that turn a simple pasta dish into something truly special.

How to Serve Vegan Caramelized Onion Pasta with Sun-Dried Tomatoes and Coconut Milk Recipe

A large metal pan filled with spaghetti pasta mixed in a creamy light brown sauce, with small bits of cooked onions and red chili flakes scattered throughout. The pasta is garnished with chopped green herbs, likely parsley, and sprinkled with grated cheese and black pepper, creating a textured and vibrant look. The pan handle is visible at the top left, and a small bowl with grated cheese is partially seen on a white marbled surface in the background. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Freshly chopped parsley adds a vibrant green contrast and herbaceous brightness, while a sprinkle of vegan parmesan brings that satisfying cheesy note everyone craves. For anyone who enjoys a little heat, a light drizzle of chili crunch oil finishes the dish with a wonderful pop of spice and texture.

Side Dishes

This pasta pairs beautifully with a crisp, refreshing salad—think mixed greens with a tangy vinaigrette to cut through the richness. Roasted or steamed vegetables, like asparagus or green beans, add great color and a little crunch on the side. For bread lovers, a warm crusty baguette or garlic bread complements the creamy sauce perfectly.

Creative Ways to Present

For a special touch, try plating the pasta in shallow bowls with a swirl of chili crunch oil on top and a scattering of sun-dried tomato slices for extra visual appeal. You could also serve it as a pasta bake by adding vegan parmesan on top and broiling for a few minutes until golden and bubbly—comfort food elevated in every sense!

Make Ahead and Storage

Storing Leftovers

This Vegan Caramelized Onion Pasta with Sun-Dried Tomatoes and Coconut Milk Recipe stores wonderfully in an airtight container in the refrigerator for up to 3 days. The flavors often deepen overnight, making it a perfect make-ahead meal for busy weeknights.

Freezing

While you can freeze this pasta, keep in mind that the texture of the coconut milk sauce may change slightly upon thawing. Use a freezer-safe container and consume within 1 month for best quality. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat gently in a skillet over medium-low heat, adding a splash of water or plant-based milk to restore creaminess. Stir frequently to warm the sauce evenly without separating. Alternatively, microwave in short intervals, stirring between each until heated through.

FAQs

Can I use other types of pasta for this recipe?

Absolutely! While spaghetti works wonderfully to soak up the sauce, feel free to try fettuccine, linguine, or even penne. The key is using a pasta that allows the sauce to cling well.

Is it possible to make this recipe gluten-free?

Yes, simply swap out traditional spaghetti for your favorite gluten-free pasta. Just be sure to cook it according to package instructions as cooking times may vary.

Can I substitute canned coconut milk for another creamy base?

Coconut milk provides a rich creaminess and subtle sweetness that’s perfect here, but you could experiment with cashew cream or almond milk with added thickener. Coconut milk remains the best for the texture and flavor balance in this dish.

How can I reduce the spice level if I don’t like spicy food?

Omit or reduce the chili crunch oil to tone down the heat. The dish still tastes incredible without it and you can add a pinch of black pepper or smoked paprika for mild warmth instead.

What can I add to make this pasta even more filling?

Try tossing in cooked chickpeas, sautéed mushrooms, or steamed broccoli. These additions boost the protein and fiber, making the meal more substantial while complementing the existing flavors beautifully.

Final Thoughts

I genuinely believe this Vegan Caramelized Onion Pasta with Sun-Dried Tomatoes and Coconut Milk Recipe will become a cherished part of your cooking repertoire. It’s a stunning combination of simple ingredients that come together to create something truly satisfying and special. Don’t wait to dig in and share this cozy, flavorful dish with your loved ones—it’s pure comfort that’s ready to brighten any day.