This recipe is for grilled corn ribs. So if you want to make this exact recipe, then yes, you have to grill corn ribs. But, if you want to modify this recipe, you can make corn ribs in the oven. You would start and finish them the same, but instead of grilling them, put the corn ribs on a sheet pan and cook them in the oven at 400 F for 20 minutes. Start them on one side, then flip them to the other side halfway through.