The Economic Times

Out of baking powder? For about 1 tsp, mix 1/4 tsp baking soda with 1/2 tbsp vinegar or lemon juice and enough milk to make 1/2 cup; the acid reaction releases carbon dioxide

If you're out of baking powder, don't despair! You can whip up a quick substitute using common kitchen ingredients. A blend of baking soda, fresh lemon juice, and a splash of milk will give your batter the lift it needs. It's crucial to prepare this mixture right before mixing it with your batter.