Place hemp seeds, orange juice, cashews, hot water, lime, red wine vinegar, garlic cloves, cilantro, parsley, and S&P in a high speed blender and process until smooth.
If the sauce is too thick, add water (1 or 2 tablespoons) at a time until the desired consistency is met.
Stir in the hot pepper flakes if including (blending the peppers, adds a lot of heat so I usually just stir them in after).
Place in fridge in airtight jar for up to a week.
You may need to add a teaspoon of water to thin out after fridge time. Can be frozen.