When I went digging in her pantry, I found baking powder that had expired many, many years earlier. I tossed it, but, like my friend, I sometimes have some in my pantry that’s not the freshest ...

So, if you want to avoid flat cookies and cakes in the future and you’ve got expired baking soda, here are 12 substitutes to consider. Here are a few reasons why you need baking powder when you ...

Make sure your pan or griddle is well-heated before adding batter. A medium-high heat is best—test it with a drop of water.