The number of eggs required for a box of yellow cake mix can vary depending on the brand and specific recipe instructions. Generally, most boxed yellow cake mixes call for 2 to 3 eggs.
To get the most accurate information for a specific brand or recipe, it's best to refer to the instructions on the back of the cake mix box. The required number of eggs is usually listed along with the other ingredients and baking directions. Follow the instructions provided on the box to ensure the best results when using the cake mix to make a delicious yellow cake.