Just because your cake comes from a box, doesn't mean you can't make it your own or improve its taste. You can improve it by swapping out vegetable oil

for other forms of fat.

Vegetable oil is often used for frying and baking as it has a neutral flavor. However, that neutral flavor also makes it not stand out in the baked goods.

Switching to another form of fat like butter, ghee, browned butter, coconut oil, or olive oil can significantly impact your cake's flavor and texture.

Choosing the right oil replacement for your cake mix can take some experimenting. For example, adding browned butter to a vanilla cake mix can give your cake a warm, toasty flavor.