Add all ingredients to a blender and blend to your desired consistency. Add water, 1 Tbsp at a time, to thin out the dressing if desired.
Taste and add any of the optional add-ins as desired.
Store covered in the fridge for up to 7-10 days.
Notes
1) If you don't have tahini, you can try another nut/seed butter you like. Chinese sesame paste, almond butter, sunflower seed butter, or peanut butter would probably be tasty. You can also use a neutral oil if you're not oil-free.2) Make it gluten-free by using tamari, or make it Plant-Based Whole30 friendly by using coconut aminos!