Optimal Depth 12 Paths

540437 / 540437+ elements you can craft in 12 steps or less. Again, due to the nature of revivals and fake Nothing results, there is the possibility of a few more. Thanks to the effort of the Revive All Low Depth Elements thread in the Infinite Craft discord, 11-steps and below should be complete.

This will be the last release of optimals - there's no point scraping 13-steps because it will take more than a year.

Files are compressed with 7zip, because they are beeg.

Apple Bloom:
Fire + Fire = Volcano
Water + Earth = Plant
Water + Plant = Swamp
Earth + Plant = Tree
Plant + Swamp = Venus Flytrap
Volcano + Venus Flytrap = Venus
Tree + Venus = Apple
Water + Apple = Cider
Swamp + Cider = Moonshine
Venus Flytrap + Moonshine = Moonflower
Cider + Moonshine = Applejack
Moonflower + Applejack = Apple Bloom

Optimal Depth 11 Paths

155306 / 155306+ items crafted in 11 steps or less.

Due to recent weird behaviour in Infinite Craft, such as random recipes resulting in null or a 500 Internal Server Error, there may be a larger set of missing recipes.
Depth 12 will take somewhere between 3-4 more months.

Fluttershy:
Water + Fire -> Steam
Water + Steam -> Cloud
Fire + Steam -> Engine
Cloud + Engine -> Jet
Cloud + Jet -> Rainbow
Jet + Jet -> Jetpack
Jet + Jetpack -> Pilot
Rainbow + Pilot -> Rainbow Dash
Fire + Rainbow Dash -> Flame Dash
Engine + Rainbow Dash -> My Little Pony
Flame Dash + My Little Pony -> Fluttershy

Optimal Depth 10 Paths

48743 / 48743+ things you can craft in 10 steps or less.

If you don't want to use Ctrl+F or regex though the optimal files, and don't need the database for other purposes, check out yui's site which has included all of the depth 10 optimals.

Note that due to recent censoring changes, there are a portion of these recipes that do not work.

Pinkie Pie:
Water + Fire -> Steam
Water + Earth -> Plant
Water + Steam -> Cloud
Fire + Steam -> Engine
Wind + Plant -> Dandelion
Water + Cloud -> Rain
Engine + Dandelion -> Helicopter
Water + Rain -> Rainbow
Helicopter + Rainbow -> Rainbow Dash
Dandelion + Rainbow Dash -> Pinkie Pie

For those interested in getting numbers:

Water + Earth -> Plant
Wind + Plant -> Dandelion
Water + Dandelion -> Wine
Plant + Dandelion -> Weed
Water + Wine -> Holy Water
Wine + Weed -> Hangover
Fire + Holy Water -> Vampire
Weed + Vampire -> Count
Count + Count -> Number
Hangover + Number -> 1

Optimal Depth 9 Paths

17065/17068+ words or phrases that can be achieved in 9 crafts or less. Happy infinite crafting!

Applejack:
Water + Earth -> Plant
Wind + Earth -> Dust
Water + Plant -> Swamp
Plant + Dust -> Pollen
Water + Pollen -> Honey
Water + Honey -> Meade
Earth + Meade -> Cider
Swamp + Cider -> Moonshine
Cider + Moonshine -> Applejack

Optimal Depth 8 Paths

6566/6568 possible words that can be crafted in 8 steps or less, for your infinite crafting needs.

Stargazing:
Wind + Earth -> Dust
Dust + Dust -> Sand
Water + Sand -> Beach
Fire + Sand -> Glass
Fire + Beach -> Sun
Dust + Glass -> Telescope
Beach + Sun -> Vacation
Telescope + Vacation -> Stargazing