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Credit: Epicurious
Edna Lewis trained Peacock's palate to detect the metallic undertones that commercial baking powders can impart, and he's never looked back. Here's their formula.
Sift together cream of tartar and baking soda 3 times, then transfer to a clean dry jar and seal tightly.
Cooks' notes: ·Baking powder keeps in a cool, dark place 6 weeks.
·Homemade baking powder can be used in any recipe calling for commercial baking powder (and in the same quantity).