Is there a substitute for cream of tartar? I live in Germany, and can't for the life of me find it. I have Google translated it, some weird, unobtainable stuff comes up. Please help, I really want to make the Lily's Scones and show my German friends what they have been missing out on!
Nigella's recipe for Lily's Scones (from HOW TO BE A DOMESTIC GODDESS) uses a combination of bicarbonate of soda (baking soda) and cream of tartar as raising agents. Bicarbonate of soda is alkaline and cream of tartar is acidic and mixing the two together with liquid starts a reaction that forms bubbles of carbon dioxide. These bubbles expand in the heat of the oven and cause the scones to rise.
Cream of tartar can be difficult to find in some countries but can be replaced with another acid. Fresh lemon juice is the best substitute in this recipe and should be used in the same quantities as the cream of tartar (4 1/2 teaspoons). As it is a liquid rather than a powder the lemon juice should be added at the same time as the milk. Otherwise the recipe remains the same.