In your blender, add the cashews (make sure to toss out the water they were soaking in), nutritional yeast, olive oil, lemon juice and all spices except for the rosemary. Add about 1/4 cup of water to start.
Start to blend until smooth, adding more water as needed. You don’t have to use all of the water but I used most all of it to thin the sauce out.
Once blended until your liking, add the rosemary and blend again for 5-10 more seconds.
Taste and add more spices if you desire.
Store in a glass container in the fridge for up to 1 week.