Buttermilk soaked onion rings | Just A Pinch Recipes

Ingredients

• 4 - spanish onions, cut into 1/3"-slices, separated into rings
• 3 cup(s) buttermilk
• 1 cup(s) all-purpose flour
• 2/3 cup(s) water
• 1-1/2 teaspoon(s) baking powder
• 1 teaspoon(s) lemon juice
• 1/4 teaspoon(s) cayenne pepper
• 1/2 teaspoon(s) salt
• 1 - egg, beaten
• 1 tablespoon(s) canola oil, plus more for frying