Avoid Vegetable Oil for Boxed Cake Mix Baking

To add more flavor to boxed cake mixes, skip the neutral-tasting vegetable oil and use more flavorful fats like melted butter, coconut oil, or olive oil instead. Unrefined oils like olive oil or pumpkin seed oil can add a richer flavor profile to the cake. When swapping out fats, it's important to choose the right fat for the flavor of the cake and melt solid fats before adding them to the mix.