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Sourdough yeast and its accompanying lactobacilli produce acids, which is where the tangy flavor comes from. By added something alkaline (baking soda) you get carbon dioxide bubbles, which creates a lighter, fluffier product. But the rule of thumb is “1/4 teaspoon of baking soda per cup of flour”. Evidently, my eye was less than accurate this morning, because the pancakes were fluffy but had a decided chemical taste, indicating that there was more baking soda than could be neutralized by the acids in the batter. As usual, I mixed my starter with multigrain flour and a little filtered water the previous evening so it could develop overnight, but chemistry trumps even the best of intentions!
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By itself, served warm with butter, the bread still seemed too sweet to me but I suspected it might still be enjoyed by the officers at the local police station. That’s where I usually take my test recipes when I’m at the lake cabin, so I don’t blow my blood sugar sky high! They 9and all first responders) stay plenty busy during the 4th of July celebrations, so if you have an extra plate a cookies, drop them by the local station.