I recently met someone who was looking for a natural baking powder. We discussed the ease of making one’s own. This prompted me to look-up this recipe (from Heidi Swanson’s Super Natural Cooking).
“Why would one want to make their own baking powder?” you might ask. Well, commercially available baking powders often contain aluminum which many people attempt to avoid any more exposure to than necessary.
1 part baking soda
2 parts cream of tartar
2 parts arrowroot powder
Mix all ingredients together and store in an airtight container at room temperature. This mixture should last for about a month. To be sure that it’s still fresh, drop a teaspoon of it into a cup of hot water. If it bubbles vigourously, it’s still active.