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.

Adding chlorella powder to homemade snack bars can take them to a whole new level. Just mix it into oat-based bars with nuts, ...

It's important to remember that if you're out of baking powder, you can't use baking soda instead. But you can make your own ...