Onion Rings

There are several reasons: the batter is too warm (beer must be very cold, straight from the refrigerator), the onion rings were not dusted with dry flour first, or the batter is too thin. The correct sequence: coat the rings in flour → shake off the excess → dip into cold beer batter. The flour creates an anchor for the batter to grip. Oil temperature also matters: 175–180 °C — at lower temperatures the batter spreads and slides off.

Yes. Brush the battered rings with a thin layer of oil (or use an oil spray) and cook in the air fryer at 200 °C for 10–12 minutes, flipping halfway through. The rings will be slightly less crispy than deep-fried but significantly less oily. Do not stack more than one layer in the air fryer — otherwise they won't brown evenly. Panko breadcrumbs instead of beer batter actually give better results in an air fryer.

Beer can be replaced with: sparkling water (gives the same airy texture thanks to CO₂), sparkling apple juice (a light sweetness that pairs well with onion), kefir (thicker batter, less crispy) or soda water with 1 tsp apple cider vinegar. The key is that the liquid must be very cold and carbonated to create a light, airy batter.

Store cooked rings in the refrigerator for up to 2 days in an open container (not sealed — condensation destroys the crunch). Reheat in the oven at 200 °C for 5–7 minutes or in an air fryer at 180 °C for 3–4 minutes — they will crisp up again. A microwave is not suitable at all — the batter becomes rubbery. You can also freeze rings before frying: lay them on a tray, freeze, then fry directly from frozen.

Replace wheat flour with rice flour 1:1 — it gives an exceptionally crispy texture, often better than wheat. You can also use 50% cornstarch + 50% rice flour. For the pre-coating, use cornstarch or rice flour instead of regular flour. Replace beer in the batter with gluten-free beer or sparkling water. All other ingredients in the recipe are naturally gluten-free.