Recipe Tweaks adds a ton of useful recipes for uncraftable items as well as adding some cool recipes to the stonecutter. It also adds a few useful items and quality of life features such as compostable rotten flesh.

I recommend EMI to view the recipes.

Recipe tweaks:

The chain recipe has been changed to 3 iron nuggets.

redstone blocks such as droppers, dispensers, or pistons, are now craftable using ANY stone including regular stone, deepslate, cobbled deepslate, andesite, diorite, and granite. Same with furnaces and stone tools.

items:

empty shard: right click to fill with an XP level.
XP shard: right click to redeem XP.
XP bucket: used to brew into bottles for bottles of enchanting
tanned flesh: obtained by smelting rotten flesh, used to craft leather
Pristine handle: used to craft a trident
Prism spike: used to craft a trident
String Block: storage block for string
Rotten Flesh Block: storage block for rotten flesh, poisons you.
Gunpowder Block: storage block for gunpowder, Explodes violently when TNT explodes nearby
Blaze Powder Block: storage block for blaze powder, sets you on fire.
Spider Eye Block: storage block for spider eyes.
Fermented Spider Eye Block: storage block for fermented spider eyes.
Sugar Block: storage block for sugar.

recipes:

Empty Shard: 2 glass

XP bucket: 3 XP shard, 1 bucket

Bottle o' enchanting: brew XP bucket into 3 empty bottles

Iron horse armor: 2 chains, five iron, one leather

gold horse armor: iron horse armor, five gold

Diamond horse armor: gold horse armor, five diamond

Saddle: 5 leather, 1 iron, 1 tripwire hook

name tag: 2 paper, 2 iron nuggets, 1 string

pristine handle: 2 prismarine shards

prism spike: 1 amethyst shard, 4 prismarine crystals

trident: 2 pristine handle, 3 prism spikes.

tanned flesh: smelt rotten flesh

leather: 4 tanned flesh

glow ink sac: ink sac, 2 glowstone.

crying obsidian: 3 obsidian, 1 ghast tear OR 7 obsidian, 2 ghast tears.

red mushroom block: 4 red mushroom

brown mushroom block: 4 brown mushroom

bell: 1 chain, 1 gold block, 3 gold ingots

totem of undying: 2 gold blocks, 1 blaze powder block, 1 lapis block, 1 skull

enchanted golden apple: 1 totem of undying, six gold, 1 gold block, 1 apple

chain: 3 iron nuggets

chainmail: chains in the appropriate configuration + iron ingots(center for chestplate, top for leggings or helmet, sides for boots.)

cobweb: 5 string

string: any wool

grass block: 1 dirt, 1 grass OR 2 dirt, 2 grass OR 3 dirt, 3 grass

obsidian: 1 lava bucket, 1 water bucket (it just empties the buckets, don't worry about losing them)

Skull: 8 bones

Zombie Head: 8 tanned flesh

Creeper Head: 8 leaves, 1 gunpowder

Piglin Head: 8 tanned flesh, 1 gold nugget

Player Head: any head, XP bottle

Mud: 8 dirt, 1 water bucket = 8 mud

Fermented Spider Eye Block: 1 Spider Eye Block, 2 Brown Mushroom Block, 1 sugar block.

Ice: 1 packed ice = 9 ice

Packed Ice: 1 Blue ice = 9 Packed Ice.

Stonecutter tweaks:

Deepslate can now be stonecut into any of it's variants.

Skulk Catalysts can be cut into multiple of any sculk item.

Stone can be stonecut into cobblestone.

Deepslate can be Stonecut into cobbled deepslate.

cobblestone can be stonecut into gravel

sandstone can be stonecut into sand.

Compost Changes:

Rotten Flesh - 30%

Flesh Block - 100%

Poisonous Potato - 20%

Fuel changes:

Rotten Flesh - 0.2 items

Flesh Block - 2 items

Blaze Powder - 5 items

Blaze Powder Block - 50 items

Q&A

Pot to new versions?

When i have time. I will soon be completely rewriting this mod as an actual mod (not mcreator) which may take some time. THat will likely be for 1.21.1.