How long does it take to make a cake if you use butter?

You can't determine how long it takes to make a cake based solely on the use of butter. The baking time depends on many factors, including:

* Cake recipe: Different cake recipes have different baking times.

* Size and shape of the cake pan: A larger cake pan will take longer to bake than a smaller one.

* Oven temperature: A hotter oven will bake the cake faster.

* Cake batter consistency: A denser batter will take longer to bake.

Generally, it takes around 30-45 minutes to bake a cake, but this can vary greatly.

To know how long it takes to bake your specific cake, refer to the recipe instructions.

Let me know if you have a specific cake recipe in mind, and I might be able to help you estimate the baking time.