Start the Black 10/0 thread on a small curved down-eye midge hook, a Daiichi 1120 or the equivalent TMC 2487.
Clip three or four strands of root beer Wapsi Midge Flash, align the ends, and touch a lighter to the tips just long enough to melt them, then pinch them together so they fuse into one shuck that still splits apart behind the fly.
Tie the fused shuck in off the back so it hangs low, binding it a little past the barb and down the shank to give the fly some curvature.
The body is thread only: wrap forward over everything keeping it clean and smooth, take the thread up toward the eye, then come back slightly to position the wing.
Pick a clean CDC Oiler Puff in medium dun, avoiding any that are clumped together. Preen the fibres forward, measure it to extend just to the end of the body, secure it with a good locking wrap and clip the butt behind the eye, then cover it going forward so the section stays even with no slope for the hackle to climb.
Size a feather off the Dry Hackle Cape so the barbs reach about the length of the barb, strip the fibres off the base of the stem, tie it in on that flat spot and cover the stem, then run the thread forward leaving room for a head behind the eye.
Palmer the hackle forward five or six turns under steady, unbroken tension and stop where the fly is to be finished.
Walk the thread back until it is sitting right next to the hackle before you come around and over it to tie it off, so nothing gets pulled forward. Clip the excess and any trapped fibres, then work backwards building a small thread head and whip finish.