Tahini is roasted and ground sesame seeds. Sort of like sesame butter. Depending on your grocery store-it can be in the asian area with the soy sauce and stuff, it can be in the health food section, I've even seen it by the peanut butter but I think that might have been a mistake-can you imagine some unsuspecting person trying to make a tahini and jelly sandwich
Hummus taste like...hmmm...beans with spices I guess is the best way of explaining it, it's creamy, goes well with vegetable strips and SBD friendly crackers.
I always buy the premade stuff from Trader Joes, the ingredients are SBD friendly and it tastes pretty good. When I make mine from scratch it doesn't taste very good, the flavors don't blend together the way store bought does, could just be the way I make it too.
Have fun!
Sarah