Pour boiling water over raw cashews and let them soak for 30 minutes to 1 hour.
Boil a pot of water and add the pasta with salt. Cook according to package instructions.
Drain the cashews and add to a blender together with nutritional yeast, 1 clove of garlic, oat milk, lemon juice and a pinch of salt. Blend till smooth, then transfer to a pan or a saucepan and gently heat through over low heat for approximately 2 minutes while stirring. We want the garlic to cook and the sauce to warm through. Toss with pasta.
Notes
A high powered blender such as Blendtec, Vitamix, or Kitchen Aid will work with the cashews are soaked for 30 minutes. If your blender does not have the same level of power then soak the cashews overnight.