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A skillet with vegan mac and cheese.

Roasted Red Pepper Sauce

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5 from 1 review


This roasted red pepper sauce is so creamy and easy to make! Serve over pasta, use as a dip, and put on anything that loves a cheesy sauce. 


  • 1 cup raw cashews, soaked a few hours or overnight and drained
  • 3 cups chopped cauliflower florets (about 1-inch pieces)
  • 1 tsp salt
  • 2 tsp canola oil
  • 1/2 large onion, chopped
  • 2 cloves of garlic, halved, smashed with a knife, and roughly chopped
  • 3/4 cup roasted red pepper
  • 1/4 cup of the roasted red pepper brine
  • 3/4 cup vegan sour cream
  • 1/2 cup vegetable broth
  • 1/4 cup nutritional yeast
  • 2 tsp apple cider vinegar
  • 3 TB shiro miso
  • 45 cups medium shell pasta or macaroni
  • flaky sea salt, for serving


for the sauce

  1. Bring a medium-sized pot of water to a boil. Add the cauliflower and salt and boil for about 8 minutes.
  2. Using a skimmer or slotted spoon, transfer the cauliflower to a high-speed blender.
  3. In a small pan, brown the chopped onions in the oil for 5 or 6 minutes, or until a little color starts to develop.
  4. Add in the chopped garlic and saute for a minute more. Stir to ensure the garlic does not burn.
  5. Transfer the onions and garlic to the blender with the cauliflower.
  6. Add the roasted red pepper, brine, vegan sour cream, and vegetable broth.
  7. Blend the ingredients, starting at a low speed, then increasing the speed to high until smooth.
  8. Add the cashews, nutritional yeast, vinegar, and shiro miso. Blend again to combine.
  9. Taste, and adjust any of the flavors.
  10. When serving, add a generous pinch of flaky sea salt to taste. This is important to intensify and make all of the other flavors really pop.

to mac the vegan mac and cheese

  1. Bring a large pot of salted water to a boil.
  2. Add the pasta and cook according to package instructions.
  3. Drain and toss the pasta with the desired amount of roasted red pepper sauce.
  • Prep Time: 15 minutes
  • Cook Time: 10 minutes
  • Category: Lunch, Dinner
  • Method: Boiled, Blended, Sautéed
  • Cuisine: American