Step 1: Prepare the Oven and Pan: Preheat the oven to 350F (175C). Grease and flour a 9x13 inch baking pan. This prevents the cake from sticking and ensures easy removal after baking. Alternatively, use baking spray with flour.
Step 2: Combine Wet Ingredients: In a large mixing bowl, combine water, vegetable oil, and eggs. Whisk until well blended. Ensure the eggs are fully incorporated for a smooth batter.
Step 3: Incorporate the Cake Mix: Gradually add the vanilla cake mix to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix, as this can result in a tough cake. Scrape down the sides of the bowl to ensure all ingredients are evenly incorporated.
Step 4: Enhance Flavor (Optional): If desired, stir in 1 teaspoon of vanilla extract for an extra layer of flavor. This step is optional but enhances the overall aroma and taste.
Step 5: Pour into the Pan: Pour the batter into the prepared baking pan, spreading it evenly. A uniform layer ensures even baking.
Step 6: Bake to Perfection: Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean. Begin checking for doneness around the 30-minute mark.
Step 7: Cool and Serve: Let the cake cool in the pan for 10 minutes before inverting it onto a wire rack to cool completely. This prevents the cake from breaking and allows it to retain its moisture. Once fully cooled, frost with a favorite icing, if desired, and slice to serve.
Optional Tips: For a richer flavor, substitute milk for water. For a chocolate variation, add 1/4 cup of cocoa powder to the dry mix. If the cake mix is past its expiration date, consider adding 1/2 teaspoon of baking powder to help with leavening.