Homemade Crispy Batter Mix

Instructions:

1. Prepare the dry mix
   In a jar or bowl, combine all the dry ingredients (flour, cornstarch, baking soda, baking powder, and salt).
   Seal the jar tightly if preparing in advance.
2. Prepare the batter
   Just before frying, add 3/4 cup of very cold water (or sparkling water for an even lighter, airier batter).
   Whisk quickly until you get a smooth, fluid batter (not too thick, not too runny).
3. Use
   Dip pieces of chicken, fish, or vegetables into the batter.
   Fry immediately in hot oil at 180°C (350°F) until golden brown and crispy.