Firstly, preheat your oven to make its temperature reasonable. Secondly, put the dry cake mix into mixing bowl. Now, add required amount of water, oil, and eggs into the mix. Next, mix it all with mixing spoon until it gets smooth and free of clumps. Then, grease the cake pan with the shortening. Now, flour the pan gently. Next, put the cake batter into cake pan making its surface even. Then, place the cake in the oven and bake it for around 30 minutes.
Take the cake out of the oven when it is baked. To check it if it is baked enough or not, put through it a needle or something like it to the bottom. If it comes out clean, the cake is fully baked. Leave the cake to cool.