Ouput / Error:
17:55:56.748 - Lighting is not a valid member of DataModel
17:55:56.748 - Script 'Workspace.Strawberry Cake.FoodMaster', Line 3
17:55:56.748 - Stack End
local sp = script.Parent
local detector = sp:WaitForChild("ClickDetector")
local cookie = game.Lightning.Foods["Strawberry Cake"] --Line 3
function caik(plr)
local clone = cookie:Clone()
clone.Parent = plr:WaitForChild("Backpack")
end
detector.MouseClick:connect(caik)
Thanks, Replicat3dData.

2 comments
Are you sure the tool is in lighting and has that exact name?
On line 3, you wrote "Lightning" instead of "Lighting". Change that and tell me what happens.