I managed to frankenstein this code and it works.


-- Add byproducts
data.raw.recipe["edrill-0to1"].main_product="electric-mining-drill"
data.raw.recipe["edrill-0to1"].results={{name="electric-mining-drill",probability=1,amount=1},{name="iron-dust",probability=0.4,amount=1}}
local recipes ...

Basically, you'd need 2 loops: one running over all recipes, and then another inside of that running over the ingredients looking for and changing as needed.

for name, recipe in pairs(data.raw.recipe) do
for k, ingredient in pairs(recipe.ingredients) do
-- do stuff
end
end


You can work ...

I know you can do it like this manually, but I would like to turn this into a loop that will find all ingredients and use table.insert to add the byproduct instead.
data.raw.recipe["iron-gear-wheel"].ingredients =
{
{"iron-plate", 2},
{"iron-plate-scrap", 1}
}

Please help :cry:, I don't wanna ...