Add the cashews, nutritional yeast, water, mustard, and garlic to the blender.
Blend until the mixture is smooth and creamy. Add salt and pepper to taste.
For serving: Heat the vegan alfredo sauce in a large frying pan, over medium heat until warmed through. Toss with your favorite pasta, and enjoy!
Don't be scared of the nutritional yeast - it adds a wonderful cheesy flavor to the pasta. Variations - To make a vegan mushroom alfredo sauce (as pictured), simply saute some fresh mushrooms in the frying pan before adding the blended sauce. Mix it all together to heat through and serve. Yum!