function bobmods.lib.recipe.replace_ingredient(recipe, old, new)
  print("Hello from replace_ingredient in bobs!")
  print("Recipe: "..recipe)
  print("HELP(0)! "..recipe)
  print("OUTPUTTING data.raw")
  print(data.raw)
  print("OUTPUTTING data.raw.recipe")
  print(data.raw.recipe)
  print("OUTPUTTING data.raw.recipe[recipe] ")
  print(data.raw.recipe[recipe])
  print("OUTPUTTING bobmods ")
  print(bobmods)
  print("OUTPUTTING bobmods.lib ")
  print(bobmods.lib)
  print("OUTPUTTING bobmods.lib.item ")
  print(bobmods.lib.item)

  if not data.raw.recipe[recipe] then
    return false
  end

  if data.raw.recipe[recipe] and bobmods.lib.item.get_type(new) then
    print("HELP(1)! "..recipe)
    local amount = 0
    for i, ingredient in pairs(data.raw.recipe[recipe].ingredients) do
      if ingredient[1] == old then
        amount = ingredient[2] + amount
      end
      if ingredient.name == old then
        amount = ingredient.amount + amount
      end
    end
    if amount > 0 then
      bobmods.lib.recipe.remove_ingredient(recipe, old)
      bobmods.lib.recipe.add_ingredient(recipe, {new, amount})
      return true
    else
      return false
    end
    print("HELP(2)! "..recipe)
  else
    print("HELP(3)! "..recipe)
    if not data.raw.recipe[recipe] then
      log("Recipe " .. recipe .. " does not exist.")
    end
    print("HELP(4)! "..recipe)
    if not bobmods.lib.item.get_type(new) then
      log("Ingredient " .. new .. " does not exist.")
    end
    print("HELP(5)! "..recipe)
    return false
  end
end