Don Gapen tied the first Muddler Minnow in 1937 to imitate the sculpins his clients' brook trout were eating. Nearly a century later, it's still one of the most adaptable patterns in fly fishing. The chunky spun deer-hair head pushes water and silhouettes like a baitfish; the turkey wings suggest fins; the gold tinsel body adds flash.
Three ways to fish it. Stripped like any streamer — fast pulls, short pauses, deep banks. Swung on a sink-tip, broadside to the current, for steelhead and big trout. Dead-drifted in late summer as a hopper imitation; trim the head and it floats like cork.
Sizes 4-12. Tan and natural for most water. The marabou variant trades the wing for a marabou tail and breathes more in slow currents.