You can make your own baking powder by combining 15ml/1tbsp bicarbonate of soda with 30ml/2tbsp cream of tartar. Measure carefully as too much or too little can upset a recipe’s balance.
When we added baking powder to our pH indicator water it erupted. A lot! We were expecting colour changes from our chemical reactions, not eruptions with tons of bubbles. This surprise result ended up ...
This means that the first leavening (rise) happens when the baking powder is mixed with wet ingredients — have you ever noticed bubbles when stirring your wet ingredients into the dry ...