To make the batter, combine the flour, cornstarch, baking powder, salt and pepper in a large bowl.
In a separate bowl, whisk the egg. Then add the beer, water, and lemon juice.
Whisk the wet ingredients into the dry and let sit for about 10 minutes in the refrigerator, while you prepare the rest of your mise en place.
- 5 tbsp all-purpose flour
- 3 tbsp cornstarch
- 1 1/2 tsp baking powder
- 1/2 tsp kosher salt
- 1/2 tsp freshly ground black pepper
- 1 large egg
- 1/4 cup beer
- 1/4 cup water
- 1 tbsp lemon juice