Baking some last-minute holiday cookies? Be sure your baking powder and baking soda are fresh and active so they can leaven the dough. Most containers are marked with "use by" dates. To test baking ...

DEAR HELOISE: I understand that baking powder has a shelf life, and that it can go bad. Can you tell me how long it remains good? — Joe and Kay, via e-mail It does have a shelf life, and here’s how to ...

Baking may seem like magic sometimes, but it's actually science! Just consider baking powder and baking soda for a moment. These chemical leaveners are the reason your baked goods like homemade cakes, ...

Almost every cook has faced this scenario: You're following a recipe that requires baking powder but you only have baking soda. What do you do? Can you substitute? Or this one: You haven't baked for a ...