Years ago, I was at a friend’s house and I wanted to make some chocolate chip cookies. When I went digging in her pantry, I found baking powder that had expired so long ago I had to toss it. No ...

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 powder is more than just a pantry staple—it’s the science behind fluffy pancakes, airy cakes, and tender biscuits. From its three core ingredients to the difference between single-acting and ...

Test your baking powder’s freshness with a simple hot water fizz test. Fresh baking powder ensures light, fluffy baked goods that hold their shape. Make your own baking powder with baking soda, cream ...