Concord Foods Tempura Style Onion Ring Batter. For sensational, fried onion rings at home. Onion ring batter mix. Our traditional onion ring recipe has been used in prominent New England restaurants and country fairs for decades. Now, you can use this tempura style batter to create sensational onion rings right in the comfort of your own home. The makers of fine products in the products department. Visit our website for great recipes! www.concordfoods.com.