Note: Contested against a published dressing: MISMATCH. The real Mini Trout Slider is an articulated two-hook fly (front size 2, rear size 4 on Senyo intruder wire) with tan/white marabou, gold Ice Dub body, tungsten streamer eyes and a stacked deer-hair head. Source: Fly Fish Food (Cheech) — "Mini Trout Slider" streamer tutorial — https://www.flyfishfood.com/blogs/streamer-tutorials/mini-trout-slider
Reference Recipe
Hook streamer, 4XL, 4-8
Thread olive 6/0 or GSP
Materials
Marabou Olive/white marabou (1-2 plumes)
Flash Pearl/copper flash (few strands)
Schlappen or saddle hackle Olive schlappen or saddle hackle (1-2 feathers)
Deer hair or dubbing Olive ice dub (for head)
How to tie it
Start thread at mid-shank and tie in a marabou tail about one-and-a-half shank lengths long with a few strands of flash.
Tie in a schlappen feather and palmer it forward a few turns as a soft collar, then sweep the fibers back.
Advance to the front third of the shank.
Spin or stack a clump of deer hair (or dub a bulky collar) to build a bullet-shaped head, packing it back against the body.
Whip finish at the eye and trim the head to a rounded, tapered slider shape, flat below and domed on top so it pushes water and dives.
Add a drop of cement to the thread head.
Other versions
2 more in the app: Fly Fish Food Tie, variant 1, Fly Fish Food Tie, variant 2.