If you only buy one cast-iron pan in your life, it should be a 12 inch skillet, which is big enough to handle large dishes without being overwhelming. Victoria Pans, based in Columbia, are high quality, very reasonably priced, and all their pans come with a very durable flax-oil seasoning, so they work great right out of the box.
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Cast iron is incredibly durable and the best for a wide variety of cooking, roasting, and frying. Here, find our favorite cast iron pans, dutch ovens, and more.