PSA: 3 hour cookie disaster taught me to read baking powder expiration dates

I spent last Saturday making triple batch of chocolate chip cookies for a bake sale in Austin. After 2 hours of mixing and chilling dough, they came out flat as pancakes. My husband pointed out the baking powder can I used expired in 2021. I never thought about checking freshness on something that just sits in the cabinet. Has anyone else had a whole batch ruined by old leavening agents?

2 comments

2 Comments

the_max11d ago

My 2015 baking powder streak ended with a tray of blueberry scones that looked more like frisbees than baked goods. At least your cookies probably still tasted good, mine could've doubled as doorstops.

emery_flores11d ago

Baking powder doesn't really go bad, it just loses its fizz. The acid and base just stop reacting after a while. Next time test it in hot water before using it.