Oat Milk Alfredo Pasta Sauce (Vegan and No Cashews) Recipe
Introduction
This creamy oat milk Alfredo sauce is a deliciously smooth and vegan-friendly alternative to traditional Alfredo, made without cashews. It’s perfect for anyone looking for a dairy-free pasta sauce that’s easy to prepare and full of comforting flavor.

Ingredients
- 2 tbsp olive oil
- 2 tbsp flour (regular or gluten-free)
- 2 cups oat milk (plain and unsweetened, full-fat recommended)
- 2 cloves of garlic (crushed)
- 2 tbsp nutritional yeast
- ½ tbsp lemon juice (optional, adjust to taste)
- Salt and ground black pepper (to taste)
Instructions
- Step 1: In a medium pot, warm the olive oil over medium heat. Add the flour and whisk well to combine, stirring continuously for about one minute until it forms a loose paste.
- Step 2: Slowly pour in the oat milk while whisking to avoid lumps. Bring the mixture to a gentle simmer, increasing the heat if needed.
- Step 3: Add the crushed garlic, nutritional yeast, lemon juice, salt, and ground black pepper. Continue whisking and cooking for 5 to 7 minutes until the sauce thickens.
- Step 4: Remove from heat and taste, adjusting the seasoning if necessary. Combine with cooked pasta of your choice and serve, optionally garnishing with extra ground black pepper or sliced green onions.
Tips & Variations
- Use full-fat oat milk for a richer, creamier sauce.
- For a garlic boost, sauté minced garlic in the olive oil before adding the flour.
- Try adding a pinch of nutmeg for a warm, subtle spice.
- Gluten-free flour works well to keep this sauce suitable for gluten-sensitive diets.
- Add sautéed mushrooms or spinach for a hearty vegetable version.
Storage
Store any leftover sauce in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove over low heat, adding a splash of oat milk if it thickens too much.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use a different plant milk instead of oat milk?
Yes, you can substitute with other unsweetened plant milks like almond, soy, or coconut, but oat milk’s natural creaminess makes it especially good for this recipe.
Is nutritional yeast necessary?
While nutritional yeast adds a cheesy flavor and nutrients, you can omit it if needed. The sauce will be less cheesy but still creamy and flavorful.
PrintOat Milk Alfredo Pasta Sauce (Vegan and No Cashews) Recipe
A creamy, vegan Alfredo pasta sauce made with oat milk and without cashews, offering a dairy-free and gluten-free alternative that’s rich and flavorful. Perfect for easy weeknight meals, this sauce combines olive oil, flour, garlic, nutritional yeast, and lemon juice to make a smooth, savory sauce that pairs wonderfully with any pasta.
- Prep Time: 5 minutes
- Cook Time: 10 minutes
- Total Time: 15 minutes
- Yield: About 2 cups sauce, enough for 4 servings of pasta 1x
- Category: Sauce
- Method: Stovetop
- Cuisine: Vegan/Western
- Diet: Vegan, Gluten Free
Ingredients
Sauce Ingredients
- 2 tbsp olive oil
- 2 tbsp flour (regular or gluten-free)
- 2 cups plain, unsweetened oat milk (preferably full-fat like Oatly)
- 2 cloves garlic, crushed
- 2 tbsp nutritional yeast
- ½ tbsp lemon juice (optional, or to taste)
- Salt and ground black pepper, to taste
Instructions
- Heat Oil and Flour: In a medium pot, warm the olive oil over medium heat. Add the flour and whisk continuously to combine into a loose paste. Cook for about one minute while stirring, ensuring it doesn’t brown.
- Add Oat Milk: Slowly pour in the oat milk while whisking steadily to prevent lumps. Bring the mixture to a gentle simmer, increasing the heat if necessary.
- Incorporate Flavorings: Add the crushed garlic, nutritional yeast, lemon juice (if using), salt, and ground black pepper to the pot. Continue whisking to combine all ingredients thoroughly.
- Simmer and Thicken: Cook the sauce for 5-7 minutes, whisking often until it thickens to a creamy consistency. Remove from heat once desired thickness is reached.
- Serve: Mix the sauce with cooked pasta of your choice. Garnish with additional ground black pepper or sliced green onions if desired. Serve immediately for best texture and flavor.
Notes
- Use full-fat oat milk for a richer and creamier sauce consistency.
- You can substitute regular flour with gluten-free flour to keep the sauce gluten-free.
- Adjust lemon juice and seasoning to your taste preference for brightness and saltiness.
- Perfect paired with any pasta, from fettuccine to penne.
- Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove with a splash of oat milk if needed.
Keywords: Vegan Alfredo, Oat Milk Sauce, Dairy-Free Pasta Sauce, Vegan Pasta Sauce, Gluten-Free Alfredo, Plant-Based Alfredo

