This versatile, dairy-free sauce is creamy and nutty with just a tiny hint of chili heat, so it's a perfect partner for raw and roasted vegetables, flatbreads, grilled chicken, meat, and of course, falafel. It also makes a wonderful sandwich spread. Use the very best tahini that you can find, as the quality makes all the difference in this sauce. Aleppo pepper is a fruity, mildly spicy ground dried chili from the Middle East that's widely available online. If you can't find it, substitute hot sauce such as Tabasco or a little cayenne (but don't sprinkle those on top for serving). The recipe is a Yummly original created by Martha Holmberg.