Place the tahini, olive oil, lemon juice, salt and pepper into a blender along with 1/4 cup of water to start. (I love using my Ninja blender
to make dressings. The individual cups are the perfect size for small batch items like salad dressing!). Blend until emulsified. Add additional water to reach desired consistency. For salad dressing, vs. a dipping sauce, I use closer to half a cup, sometimes a bit more.