Chocolate is hard for me, as I am not very much of a fan. However...
Two family recipes, Colby Cake (Mrs. Colby was my great grandmother's neighbor) and chocolate steamed pudding (my nana's recipe). My favorite "chocolate" recipe is red velvet cake, but being as "brown" was listed on the description of answers, I didn't go with that.
Milk chocolate covered pretzels; I'm into the sweet/salty thing.
Swiss chocolate fudge from The Goldenrod in York Beach, Maine. It's far, far closer to white chocolate than regular fudge- it's a pale tan color with almonds- but not at all very chocolaty which is probably why i like it.
ETA: I just thought of one I really like: Chocolate ice cream sodas, but made with peppermint stick ice cream!
Fast things-
Big Thunder Mountain, Slinky Dog, and 7DMT. These are the only coasters I ride at Disney. TT is OK, but I can only do it once as the outside track portion tends to make me queasy.
Cars. When we were in our early 20s and Rt. 495 around Boston was brand new, we'd take my roommates' cars- either a TransAm or a Camaro, depending on the roommate- out in the wee small hours and open them up on 495, hitting over 100mph just for the heck of it. LOVED that but now I get palpitations thinking about what could have happened. We were young, stupid, invincible.
Take-off on an airplane. I love the feeling of speed and being pushed back into the seat as the plane defies gravity and takes to the air. Physics is pretty cool (just don't make me prove things)!