This is a general purpose Steelhead fly that works all year. It's like a subsurface steelhead stimulator. Also good with a chartreuse head. Works great as the bottom fly on an indicator rig, since you can swing it out at the end of your drift.
Follow the links to purchase the materials:
Start with a thread base, run it back to the hook bend. Tie in a nice fluffy straight piece of grizzly marabou.
Cover the stem with thread working forward, about 2/3 the way up the shank.
Cut the excess feather, tie in a piece of copper wire.
Run the thread back, covering the wire as you go.
Spin the dubbing on the thread. Peacock, Brown UV, or even Yellow UV would be other colors that would work just fine.
Wrap it forward, with a slight taper going toward the front.
Wrap the wire through the dubbing. 8 or 9 turns should do it. Prevents the dubbing from fraying off.
Tie in a short mallard flank by the tip.
Make 2-3 turns with it. Tie it off, cut excess.
First tie in the bottom half of the egg.
Then the top.
Pull them tight, and cut each half separately so they form a ball. Should look somewhat like an egg!
There you have it. Quick and easy. Change the colors to your liking, but this one is a safe bet. Fish it like a nymph with a little swing at the end.