Step 1: Prepare Baking Pan: Preheat oven to 350F (175C). Grease and flour a 9x13 inch baking pan or two 9-inch round cake pans to prevent sticking. Alternatively, use baking spray containing flour.
Step 2: Combine Wet Ingredients: In a large mixing bowl, combine the cake mix, water, vegetable oil, and eggs. Add vanilla extract, if desired, for extra flavor depth.
Step 3: Mix the Batter: Using an electric mixer, blend the ingredients on low speed for 30 seconds to combine. Increase the speed to medium and beat for 2 minutes, or until the batter is smooth and well-combined. Scrape down the sides of the bowl occasionally to ensure even mixing.
Step 4: Pour into Pan: Pour the batter evenly into the prepared baking pan(s). Distribute the batter uniformly to ensure even baking.
Step 5: Bake the Cake: Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean. Begin checking for doneness around 28 minutes to prevent overbaking.
Step 6: Cool the Cake: Remove the cake from the oven and let it cool in the pan for 10 minutes. This allows the cake to set slightly, making it easier to remove.
Step 7: Invert and Cool Completely: After 10 minutes, invert the cake onto a wire rack and let it cool completely before frosting. Ensure the cake is thoroughly cooled to prevent the frosting from melting.
Step 8: Frost and Decorate: Once the cake is completely cool, frost with your favorite frosting and decorate as desired. Options include buttercream, cream cheese frosting, sprinkles, and fresh fruit.
For a richer flavor, substitute milk for water. Add a tablespoon of sour cream for extra moisture. Chocolate chips, nuts, or sprinkles may also be added to the batter for added texture and flavor.