Baking Powder (Best Option)
1 1/2 teaspoons per 1 teaspoon yeastBaking powder is a chemical leavening agent that releases carbon dioxide gas when moistened and heated, causing the batter to rise quickly. This rapid leavening is ideal for cupcakes, which require a tender crumb and quick bake time. Unlike yeast, it does not require fermentation time.
To ensure success, mix baking powder thoroughly into the dry ingredients and bake immediately after mixing to capture the gas bubbles. Avoid overmixing to prevent deflating the batter.
The final cupcake will be lighter and more tender compared to yeast-leavened products, which tend to be chewier and have a more complex flavor from fermentation.