Start with a cake mix and add instant pudding, sour cream, and melted butter to create a rich and moist batter.

Mix the ingredients until well combined.

Pour the batter into a bundt cake pan and bake according to the cake mix instructions.

Once baked, let the cake cool before frosting.

Prepare the tangy cream cheese frosting.

Pipe the frosting onto the cooled cake using a piping bag or a Ziploc bag with a tip cut off.