Can I make creamy vegan pasta without cashews?

Yes! If you're nut-free or just don't have cashews on hand, you can use full-fat canned coconut cream as a 1:1 substitute for the cashew cream. The flavor will have a subtle coconut note, but the balsamic and caramelized onions overpower it in a good way. Silken tofu blended until smooth is another great nut-free option.

How do I know when the onions are fully caramelized?

They should be deeply golden-brown, jammy in texture, and reduced to about a quarter of their original volume. They should smell sweet and savory and almost melt in your mouth. If they still look pale or have too much bite, keep cooking.

What's the best gluten-free pasta for this recipe?

Jovial brown rice linguine and Banza chickpea spaghetti are both excellent here. Brown rice pasta has the closest texture to traditional pasta, while Banza adds extra protein. Both hold up well and absorb the sauce beautifully.

Is this recipe Whole30?

As written, no — cashews and pasta aren't Whole30 compliant. However, you can serve the caramelized onion sauce over zucchini noodles or spiralized sweet potato noodles and use compliant ingredients throughout for a Whole30-friendly version.

Creamy Vegan Caramelized Onion Pasta (Gluten-Free + Dairy-Free)

Name: Creamy Vegan Caramelized Onion Pasta (Gluten-Free + Dairy-Free)
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Yield: 4
Cuisine: Italian
Ingredients: For the Pasta & Sauce:; 12 oz gluten-free linguine or spaghetti; 3 large yellow onions, thinly sliced; 4 tbsp olive oil, divided; 4 cloves garlic, minced; 2 tsp balsamic vinegar; 1 tsp fresh thyme leaves (or 1/2 tsp dried); 1/2 tsp smoked paprika; Salt and black pepper to taste; 1/2 cup reserved pasta water (plus more as needed); 1–2 tsp nutritional yeast (optional); Red pepper flakes, to taste; For the Cashew Cream:; 3/4 cup raw cashews, soaked 2+ hours then drained; 1/2 cup water; 1 tbsp lemon juice; 1/2 tsp garlic powder; 1/2 tsp salt; For the Crispy Breadcrumb Topping:; 1/2 cup gluten-free breadcrumbs; 1 tbsp olive oil; 1 clove garlic, minced; Pinch of salt; Fresh parsley, for garnish

Description

This creamy vegan caramelized onion pasta is silky, rich, and deeply savory — made entirely from whole plant-based ingredients with no cream or dairy. Slow-cooked caramelized onions blended with a cashew cream sauce create something truly special. Gluten-free, dairy-free, and ready in 45 minutes.

Ingredients

Units Scale

For the Pasta & Sauce:
12 oz gluten-free linguine or spaghetti
3 large yellow onions, thinly sliced
4 tbsp olive oil, divided
4 cloves garlic, minced
2 tsp balsamic vinegar
1 tsp fresh thyme leaves (or 1/2 tsp dried)
1/2 tsp smoked paprika
Salt and black pepper to taste
1/2 cup reserved pasta water (plus more as needed)
1-2 tsp nutritional yeast (optional)
Red pepper flakes, to taste
For the Cashew Cream:
3/4 cup raw cashews, soaked 2+ hours then drained
1/2 cup water
1 tbsp lemon juice
1/2 tsp garlic powder
1/2 tsp salt
For the Crispy Breadcrumb Topping:
1/2 cup gluten-free breadcrumbs
1 tbsp olive oil
1 clove garlic, minced
Pinch of salt
Fresh parsley, for garnish

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Instructions

Make the cashew cream: Drain and rinse soaked cashews. Blend with water, lemon juice, garlic powder, and salt until completely smooth. Set aside.
Caramelize the onions: Heat 3 tbsp olive oil in a large skillet over medium heat. Add sliced onions and a pinch of salt. Cook, stirring every 5 minutes, for 30–35 minutes until deeply golden and jammy. In the last 5 minutes, add garlic, thyme, smoked paprika, and balsamic vinegar. Cook 2 minutes.
Cook the pasta: Bring a large pot of salted water to a boil and cook gluten-free pasta until just al dente. Reserve at least 1 cup pasta water before draining.
Build the sauce: Pour cashew cream into the skillet with the onions over medium-low heat. Add 1/3 cup pasta water and stir until a glossy sauce forms. Add nutritional yeast if using. Season with salt, pepper, and red pepper flakes.
Toss pasta: Add drained pasta to the skillet and toss with tongs to coat. Add pasta water as needed for a silky consistency.
Toast breadcrumbs: In a small pan, heat 1 tbsp olive oil over medium heat. Add garlic and breadcrumbs with a pinch of salt. Toast 2–3 minutes until golden and crispy.
Serve: Divide pasta into bowls. Top with crispy breadcrumbs, fresh parsley, cracked pepper, and red pepper flakes. Serve immediately.

Notes

Don’t rush the caramelization — 30–35 minutes of low-and-slow cooking is what gives this sauce its depth.
Save extra pasta water — it’s the key to a silky, restaurant-quality sauce.
Store leftovers in an airtight container for up to 4 days. Add a splash of water when reheating.
To make nut-free: substitute full-fat canned coconut cream for the cashew cream.
The caramelized onion sauce freezes well for up to 3 months.

Prep Time: 10 minutes
Cook Time: 35 minutes
Category: Dinner
Cuisine: Italian