Preheat your oven. Turn the heat to 350 degrees F or gas mark 4.

Take a large mixing bowl and pour in the spice cake mix. Add half a cup of water and the can of tomato soup and lightly mix for a few moments.

Lastly, add the 3 large eggs to the bowl and beat the ingredients. Set on a low speed and beat for approximately 30 seconds if using a mixer. If you are hand beating it will take roughly 2 to 4 minutes. The consistency should be smooth and sticky.

Grease a baking dish with butter. A baking dish of 13x9-in proportions would be optimal. Pour the cake mixture into the baking dish so it lays evenly.

Place in the oven and bake for around 30 minutes. Insert a toothpick or small knife into the center of the cake to check it has baked through properly. If it comes out clean the cake is ready to be removed from the oven. Once removed, place the cake on a wire rack until it is cooled.

When the cake base has cooled frost it with a cream cheese frosting.