Creamy Caramelized Onion Pasta

Featured in: Comforting Pasta Recipes for All Tastes

This Vegan Caramelized Onion Pasta turns basic ingredients into a dish you'd find at a fancy restaurant. Slowly cooking onions draws out their sweetness, giving the pasta its rich flavor. Sun-dried tomatoes add a savory punch, while balsamic glaze adds a gentle tang. A creamy plant-based sauce ties it all together in a velvety finish. Quick to prepare in 40 minutes, it's a comforting yet elegant meal that skips dairy or tricky techniques.
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Updated on Sat, 03 May 2025 12:54:23 GMT
A bowl of creamy pasta with onions and tomatoes. Pin it
A bowl of creamy pasta with onions and tomatoes. | tastefullyrecipe.com

Silky dairy-free pasta with golden-brown onions offers pure comfort in every bite, turning everyday kitchen staples into a fancy dinner worth bragging about. The slowly cooked onions turn wonderfully sweet, making a velvety base for this no-dairy sauce, with tangy sun-dried tomatoes and fresh herbs rounding things out.

I've made this so many times I could do it with my eyes closed, and I've learned the longer you let those onions cook down, the tastier everything gets. My kids and partner always ask for this on our weekend family dinners - it's amazing how ordinary onions can turn into something so special.

Smart Ingredient Breakdown

  • Pasta: Any type works great as the sauce coats every twist and curve, letting no flavor escape
  • Yellow onions: They get candy-sweet when cooked slowly, making them the star of our sauce
  • Fresh garlic cloves: They pack way more punch than the jarred stuff ever could
  • Balsamic glaze: Adds a fancy sweet-tangy kick that makes the whole dish pop
  • Sun-dried tomatoes: The oil-packed ones bring intense flavor and meaty bits to the mix
  • Premium tamari: Gives deep savory notes without any gluten
  • Italian seasoning blend: Packs all the best Mediterranean flavors that work magic with sweet onions
  • Vegan cream: Cashew-based for that smooth, rich texture without any dairy
  • Fresh parsley: Adds a pop of green and fresh taste to finish things off

Crafting Your Tasty Pasta

Start The Base:
Get your biggest pan hot over medium heat and pour in three tablespoons of olive oil. When it's shiny, toss in your thinly sliced onions with a big pinch of sea salt. Let them cook slowly, giving them a stir now and then with a wooden spoon until they start getting juicy.
Build The Taste:
Keep an eye out for the onions turning gold around the edges. Whenever the pan looks dry, splash in a little water and scrape up all those tasty brown bits stuck to the bottom. Don't rush this part - it'll take about 20 minutes to get those onions perfectly sweet.
Add The Aromatics:
Throw in your chopped garlic and dried herbs with the sweet onions. Let them cook together until you can smell all those good smells filling up your kitchen. Your house will smell amazing right about now.
Cook Your Pasta:
While your onions are doing their thing, get a big pot of water boiling. Make it salty like the ocean. Cook your pasta until it's just a tiny bit firm, and save two cups of that starchy water before you drain it.
Mix Everything Together:
Add the sun-dried tomatoes, balsamic glaze, and tamari to your onion mix. Pour in the vegan cream and keep stirring until you've got a smooth sauce. Toss in your pasta with enough of that saved pasta water to make everything nice and silky.
A bowl of pasta with cheese and herbs. Pin it
A bowl of pasta with cheese and herbs. | tastefullyrecipe.com

My grandma always told me to pick the freshest yellow onions at the market because they had just the right amount of sugar for caramelizing. After cooking this dish hundreds of times, I can tell you the old lady wasn't messing around - she knew her stuff.

Fantastic Food Companions

Make this pasta extra fancy by adding some crispy garlic broccolini on the side, pouring a glass of chilled white wine, and scattering some toasted pine nuts on top. For a quick weeknight dinner, just toss together some peppery arugula with lemon dressing.

Mix It Up Your Way

Try swapping regular pasta for zucchini noodles when it's hot outside, or go for chickpea pasta to get more protein. Throw in some browned mushrooms for extra meatiness, or mix in handfuls of fresh spinach to sneak in more greens.

Storing Your Leftovers

Put any extra pasta in a sealed container and keep it in the fridge for up to four days. When you want to eat it again, add a little splash of water or plant milk to bring back the creaminess. Heat it up slowly on medium-low, giving it a stir every now and then.

A bowl of pasta with cheese and herbs. Pin it
A bowl of pasta with cheese and herbs. | tastefullyrecipe.com

Over time, I've learned that you can't rush good food. Taking your sweet time with those onions creates layers of flavor you just can't get any other way. When I make this simple pasta dish, it reminds me that sometimes the most basic stuff from your pantry can make the most satisfying meals.

Frequently Asked Questions

→ How can I make this gluten-free?
Easy! Use gluten-free pasta and replace soy sauce with tamari. Everything else stays the same.
→ How do I tell if my onions are caramelized?
They're ready when they shrink down a lot and turn a deep amber color with a sticky, jammy feel. This usually takes 15-20 minutes with regular stirring and deglazing.
→ What's a good alternative to vegan cream?
Blend soaked cashews or sunflower seeds with water for a quick homemade option. Or, use unsweetened coconut cream or store-bought oat cream instead.
→ Can I prep this ahead of time?
Sure! Make the onion sauce 1-2 days earlier and keep it in the fridge. When ready, cook fresh pasta and warm the sauce, thinning it with pasta water if needed.
→ What proteins go well with this dish?
Try roasted chickpeas, crispy tofu, white beans, or tempeh. If you're not vegan, sautéed shrimp or grilled chicken also pair perfectly.

Caramelized Onion Pasta

This creamy Vegan Onion Pasta blends sweet onions, tangy sun-dried tomatoes, and a silky dairy-free sauce, all ready in just 40 minutes.

Prep Time
10 Minutes
Cook Time
30 Minutes
Total Time
40 Minutes
By: Patricia


Difficulty: Intermediate

Cuisine: American

Yield: 4 Servings

Dietary: Vegan, Vegetarian, Dairy-Free

Ingredients

→ Base Ingredients

01 2 yellow onions, sliced thinly
02 1 tbsp olive oil
03 5 cloves garlic, chopped
04 Water for scraping the pan
05 1 cup pasta water (saved from cooking)
06 2 cups dried Orecchiette pasta or enough for 4 servings of your choice

→ Seasonings & Flavorings

07 1/4 cup sun-dried tomatoes in oil, sliced thin
08 1 tbsp soy sauce
09 1/2 cup vegan cream (store-bought or homemade)
10 Salt and pepper, as you like
11 2 tsp Italian herbs
12 2 tbsp balsamic glaze
13 1/2 tsp crushed red pepper flakes, optional
14 1/4 cup finely chopped parsley

Instructions

Step 01

Grab a big pan and warm it up over medium heat. Pour in the oil and toss in the sliced onions with a touch of salt. Once they start browning (about 5 minutes), add a splash of water to get those tasty stuck bits off the pan, stirring to mix. Keep going this way, cooking and adding water, until the onions are richly golden – about 15 minutes.

Step 02

Mix in the garlic, Italian herbs, and if you like a bit of heat, some red pepper flakes. Stir for 3–4 minutes until the garlic turns soft, and the onions get nice and sticky. If it sticks too much, add another splash of water to help it along.

Step 03

While the onions cook, bring a pot of water to a boil. Salt it well so it tastes like the ocean. Add your pasta and cook it based on what the packaging says. Before draining, scoop out a cup of the starchy cooking water to save for later.

Step 04

Pour the sun-dried tomatoes, balsamic glaze, vegan cream, soy sauce, and half a cup of the reserved pasta water into the onion pan. Stir until the sauce comes together smoothly.

Step 05

Add the cooked pasta and stir in the parsley. If the sauce feels too thick, mix in a bit more of the saved pasta water until it’s creamy. Sprinkle with salt and pepper as you like.

Notes

  1. Scrape up those golden bits as you cook! Add water when the pan starts getting browned – this stops sticking and adds loads of flavor.
  2. Want to make vegan cream at home? Soak 1/2 cup cashews or sunflower seeds in hot water for 10 minutes, then drain. Blend with 1/4 cup water till smooth, and measure 1/2 cup for this dish.
  3. Try pairing this dish with crispy roasted tofu or chickpeas for extra protein.

Tools You'll Need

  • Pan for cooking onions
  • Pasta pot
  • Blender if making cream from scratch

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Wheat (if not using gluten-free pasta)
  • Soy (from the soy sauce ingredient)
  • Tree nuts (if using cashew cream)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 320
  • Total Fat: 12 g
  • Total Carbohydrate: 48 g
  • Protein: 8 g