Extremely cheesy vegan nacho cheese sauce is easy to make. You can indulge by smothering your nachos or having a big bowl of cheese sauce with your chips if you do not want to eat a dairy product.
Place cauliflower and potatoes in a medium saucepan, cover with water, about an inch above. Add 1/4 teaspoon salt. Bring to a boil over high heat then bring down to simmer. Cook until vegetables are fork tender which will take around 10 minutes.
Drain, running cool tap water over them so they become room temperature.
In a high-speed blender like a Vitamix place cooked cauliflower, potatoes, cashews, water, apple cider vinegar, olive oil, chipotle pepper, garlic, onion powder, and salt. Blend until smooth and creamy. You might need to add more water, try a tablespoon at a time to get the consistency you want.