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Red Pepper Alfredo Sauce Recipe

4.7 from 79 reviews

This vibrant Red Pepper Alfredo Sauce offers a creamy, dairy-free twist on the classic Italian favorite. Made with roasted or raw red bell peppers, cashews, and nutritional yeast, it’s a rich, flavorful sauce perfect for tossing with pasta, spaghetti squash, or roasted veggies. The sauce combines wholesome ingredients to create a smooth, slightly nutty Alfredo that’s both satisfying and nutritious, ideal for those seeking a plant-based or lower-fat alternative.

Ingredients

Scale

Sauce Ingredients

  • 1 red bell pepper (raw or roasted)
  • 1/2 cup water
  • 1/2 cup raw cashews (or macadamia nuts)
  • 1/4 cup nutritional yeast (or Parmesan cheese)
  • 1 tsp salt
  • 2 tsp onion powder
  • 1/2 tsp ground turmeric
  • 1/8 tsp ground nutmeg (optional)

Main Dish

  • 10 oz pasta (or spaghetti squash or vegetables)
  • Optional: grilled or roasted veggies, beans, or other add-ins

Instructions

  1. Soak Nuts: Place the raw cashews or macadamia nuts in a bowl and cover them fully with water. Allow them to soak for 6 to 8 hours to soften, then drain completely and pat dry to prepare for blending.
  2. Blend Sauce: In a food processor or high-speed blender, combine the soaked nuts, red bell pepper, 1/2 cup water, nutritional yeast or Parmesan cheese, salt, onion powder, turmeric, and optional nutmeg. Blend until the mixture is completely smooth and creamy.
  3. Cook Pasta: Bring a separate pot of salted water to a boil and cook the pasta according to package instructions until al dente. Drain the pasta thoroughly without rinsing to preserve surface starch that helps the sauce adhere.
  4. Heat Sauce: Pour the blended sauce into a pot and gently heat over medium-low heat until warmed through, stirring occasionally to prevent sticking.
  5. Combine and Serve: Pour the warm Alfredo sauce over the drained pasta. Season further with salt and pepper if desired. Stir in any optional cooked vegetables, beans, or other favorite add-ins and serve immediately.

Notes

  • Soaking nuts is essential for a smooth sauce and easier digestion.
  • Roasting the red pepper adds a smoky depth of flavor but is optional.
  • Nutritional yeast is a vegan alternative to Parmesan, offering a cheesy flavor without dairy.
  • This sauce also works well with spaghetti squash or steamed vegetables for a low-carb option.
  • Adjust seasoning to taste, considering saltiness and spice preferences.

Keywords: Red Pepper Alfredo Sauce, Dairy-Free Alfredo, Vegan Alfredo, Cashew Sauce, Plant-Based Pasta Sauce, Easy Alfredo Sauce