I know, you read the title and you're already, "YOU LOST ME. DO NOT PUT THOSE WORDS TOGETHER." And writing as a vegan AND former cream and butter-lover is so funny, because I get that. Those who are vegetarian have probably tried this already, and those who are not will probably never try this. I really don't know for sure who I'm writing to any more. But I carry on. Because I love this stuff.
This alfredo sauce came out so well that I think it would fool anyone. Really. You make cashew cream, which is very easy - you need raw cashews, not roasted or salted. You soak them overnight in water. You don't have to measure the water OR the cashews. If pressed for time, you can bring them to a boil, and let them steep for an hour instead. Then, you drain them, put them in a blender and cover them with enough water to rise an inch over the cashews. Blend it up, and you have cashew cream. That's your base.
I added garlic cloves, and kept tasting it. Raw garlic can get too powerful rather quickly, so keep tasting. I added salt and pepper to taste, and a dash of nutmeg. Put a nice big puddle of that sauce in the bottom of a bowl, and add pasta that you fish out of the cooking liquid right into it (don't rinse the pasta off!) and toss it. Add your parmezano sprinkles, and some roasted or steamed broccoli if you want the total package. Fantastico.
This made a really large batch, since I, well, made a really large batch. I froze family-sized sauce portions in baby food containers, and it thawed beautifully in the fridge. If you really want a rich experience, finish the sauce with a bit of vegan butter - but I really didn't find it necessary - the sauce is very luxurious on its own.