Contrary to its’ size, ox heart actually only needs a short cook, similarly to a steak, if cooking on a hot grill or BBQ. You can cook ox heart in a number of ways, such as being barbecued or stuffed with mushrooms. The ox heart will need to be trimmed, as they have a layer of protective fat, due to the heart being a working muscle. The meat inside is very lean, and has a mildly gamey flavour that is versatile for different recipes.