human
What can I replace vegetable oil in a recipe since I don't have any?
I don't know about this recipe specifically, but it sounds to me like vegetable oil is just a cooking fat, and another name for “vegetable oil” is “canola oil”.  So if you don't have vegetable oil you could substitute canola oil?
Can you tell me more about the recipe so I can better understand what it is, and what you’re trying to achieve?