Start by preheating your oven to 325°F. It’s essential to ensure your oven is fully heated to achieve that perfect rise in your cupcakes.
Next, place cupcake liners in your cupcake pans. You’ll need around 36 liners to accommodate all the batter.
In a large mixing bowl, whisk together the cake mix, flour, sugar, and salt. This will be the dry mixture that forms the backbone of your cupcakes.
Add the water, vegetable or canola oil, and sour cream to the dry ingredients. Then, include the egg whites. Using a hand mixer, beat the mixture for about two minutes until everything is well combined and smooth.
Using an ice cream scoop, fill each cupcake liner about three-quarters full with the batter. This ensures that they have enough space to rise without overflowing.
Place the filled cupcake pans in the preheated oven and bake for about 18 minutes. Keep an eye on them; when a toothpick inserted in the center comes out clean, they’re ready!
Once baked, allow the cupcakes to cool in the pan for a few minutes before transferring them to a wire rack. This helps maintain their texture and prevents sogginess.
Once completely cooled, frost and decorate your White Wedding Cake Cupcakes as desired. This is where you can let your creativity shine!