Hot Dog Buns - Oops
Calculating Nutritional Information for Recipes
Creaming Butter and Sugar (and Eggs)
Why do we cream butter and sugar together when baking a quick bread, or any other baked good that uses baking soda or baking powder as leavening?
Baking is both art and science, and this topic is squarely in the science category!
The short answer is that the sugar makes tiny holes in the butter (or other solid fat). When the leavening starts to do its work, reacting with the liquid in the recipe and giving off carbon dioxide gas (CO2), that CO2 fills the tiny holes, causing them to expand, and giving lift and body to your final product.