I usually cook din din on Tuesdays since I'm at home with the behbeh and chicken is the meat of choice because my dad doesn't like to deal with it (salmonella, dry, etc.).
Mom bought buttermilk so we could see what the hype was all about over buttermilk fried chicken, but instead of frying it, I coated it with corn flakes and baked it in the oven. I marinated the chicken in salt, pepper, lemon juice, crushed garlic, buttermilk, and honey, but I think I should've left out the lemon (the buttermilk is tangy enough). I crushed the cereal in a bag and shook the chicken thigh "tenders" in it, but the excess coating became really, REALLY soggy after awhile, so I suggest doing everything quickly!
I was surprised that my parents like this and couldn't believe that my aunty said it tasted good too (she's the best cook I know ^__^)! I marinated the chicken in salt, pepper, & buttermilk, coated in flour, and fried it. Then I tossed it in a random barbeque sauce made with onions, garlic, ketchup, katsu sauce, honey, shoyu, red wine, & a packet of Pizza Hut's red chili pepper flakes. I was thinking about the sauce for capital pork chops at first, but then remembered that mom doesn't like the tangy, so I mellowed it out with more honey!
Overall, marinating chicken in buttermilk for 8 hours really did tenderize the meat, but brining works just as well!!