Combine all ingredients and store in a pint jar. The sauce will increase with potency as the dairy absorbs the aroma. Thin to your desired consistency with a splash of cream, milk, etc.
Video
Notes
Adding herbs for extra flavor
Often if I use this as a garnish, I may add some fresh herbs. Dill is the best, but a good handful of chives can be nice too. I also like fresh ground black pepper as an extra spicy variation.