Get the pasta going.
Add cashews and water to the Vitamix and blend until smooth. Add the roasted red peppers and some of their liquid to the Vitamix, along with the garlic. Blend again until smooth.
Add the sauce to a small pot and heat through. This will also cook the garlic a little bit and take the raw garlic edge off. This is optional if you want it more garlicky!
To serve with pasta, cook the pasta according to the package. Drain and mix with as much sauce as you like! Top with a sprinkle of fresh chives or parsley or whatever you like. Enjoy!