Onion rings are a common fast food item that are usually covered in a breading or batter and deep-fried. When you make an onion ring batter at home, the proper consistency is crucial for a crispy finished product. It is wise to eat any deep-fried foods on only an occasional basis, as the extra fat and calories may result in weight gain.
Add 1 cup pastry flour, ¼ tsp. baking powder, ¼ tsp. salt and 2 tbsp. cornstarch to a large mixing bowl and whisk together until combined.
Pour 1 cup of beer slowly into the dry ingredients and whisk everything together until the batter is smooth.
Dip the sliced onion rings into the batter until thoroughly coated. Shake off any excess batter and add the rings to the deep fryer.
Substitute club soda or plain water for the beer if you prefer no alcohol in the batter.