Favorite CL Festival and why?

"GalacticGal;c-16723948" wrote:
I like the Spice Festival to try out the spicy foods and the spices to make them with. I used to be able to harvest tomatoes, but that's gone by the wayside, even before Seasons launched. Going to this festival, and also the Humor and Hijinks one, makes for a nice little 'date', especially for teens.

I bought the spices at the spice festival. But how do you use them?. I can only place them in the inventory or on a surface.