Watch this instructional cooking video to prepare an appetizer of seared Ahi tuna on hot hot river rocks. Prepare your hot river rock by heating them on the grill for about one hour. The hot rocks will keep their heat for up to 20 minutes allowing you to sear the raw tuna bite by bite. You will need on Ahi tuna steak and a selected dipping marinade or dipping sauce to prepare this recipe.
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