Forum Thread here: http://www.thebrewingnetwork.com/forum/viewtopic.php?f=7&t=16493
Toast rolled oats in 325ºF/163ºC oven for approximately 1 hour. Some notes in thread about leaving them in a bag to cool down overnight, but some that skipped the cooling step in main forum thread.
Other threads suggest it's required: https://www.reddit.com/r/Homebrewing/comments/1s6qdi/can_i_get_help_converting_my_oatmeal_stout_recipe/
After starting fermentation, make up spice and raisin tincture. Split and scrap the vanilla bean and put all of it into the bourbon. Let soak for at least a week. Filter with coffee filter and pour into bottling bucket or keg.
Add tincture to taste. Some report that 4-5 oz is enough, others say not enough.
Added raisins to the tincture for more of a raisin kick. Cut raisins coarsely and add to bourbon with spices.
Substituted the inverted turbinado sugar for Belgian Candi Syrup D45 according to a comment that inverting didn't make a difference and someone else saying they made this sub. I think the point here is "brown" sugar that isn't molasses.
Yeast recommended WLP002, but WY1968, A09 Pub, Safale S-04, and Danstar Nottingham are all decent subs.
Don't usually pay attention to water