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The Best Vegan Garlic Alfredo Sauce

This sauce is amazing on top of pasta! The perfect sauce for my Alfredo Pasta lovin', dairy intolerant family!

Be sure to read the instructions! Cooking the onion makes all the difference in this easy, yummy sauce from!

The Best Vegan Garlic Alfredo Sauce

Prep Time 10 minutes. Cook Time 10 minutes

Total Time 20 minutes

Servings 2 cups sauce

Author Brandi Doming


  • 1 medium white onion, diced (200g) (MAKE SURE to measure out 1 1/2 cups b/c this is where lots of flavor comes)

  • 1-2 cups (240-480g) low sodium vegetable broth, divided

  • 1/2 teaspoon salt

  • 1/4-1/2 teaspoon ground black pepper

  • 4 x-large (15g) minced garlic cloves (or 1 T minced garlic)

  • 1/2 heaping cup (75g) raw unsalted cashews (see NOTE)

  • 1 tablespoons lemon juice

  • 2 tablespoons nutritional yeast


  • If you are using raw cashews and you don't have a high-powered blender, then you must soak them overnight in a bowl of water, drain and rinse. Otherwise, your result will be gritty and NOT creamy. A food processor usually works better with soaked cashews versus a blender that isn't very powerful.


  1. Add the onion and ONLY 1 cup of the broth to a large pan over medium to medium-high heat. Cook for about 8 minutes until the onion is very tender. (Add a tiny bit more broth if it is cooking too fast or turn the heat down, so the onions don't burn) After 8 minutes, add the garlic and cook a couple of minutes more, stirring often. All of the broth should have evaporated by now. If not, keep letting it cook until the broth is GONE. You don't want any more liquid once it's done cooking, so the end result is thick and creamy.

  2. Add the cooked veggies (the onion and garlic) to a blender. Start out by adding JUST 1/2 cup more of the remaining broth and add the remaining ingredients (salt, pepper, cashews, starting with JUST 1 tablespoon lemon juice, nutritional yeast-starting with just 2 tablespoons yeast). Blend on high for a couple of minutes until very creamy and smooth. Add any more broth to reach desired consistency, if necessary. I did not. If you don't add more broth, you would likely not need any more yeast. Taste and add any more salt & pepper or lemon, if desired.

  3. Serve over preferred pasta. Note: When preparing your pasta, make sure to salt your water well, so your pasta has flavor and isn't bland, which can affect the end flavor result of the dish. I add around a tablespoon to a large pot of boiling water. Garnish with parsley, lemon zest and salt & pepper, if desired. Add any veggies you like. I like to add broccoli or even peas. Store leftovers in the fridge. The sauce will thicken up even more overnight, which you can thin out a little with a touch of broth when reheating, if necessary.

#plantbased #glutenfree #dairyfree