Excellent recipe. Mackerel is such an underrated fish -- lots of good omega oils in it for you -- and very cheap in the UK at least. I pay about £1 for a whole fish. The citrus and spicy flavours go very well together here and it is quick to make. I served with mashed potatoes and some pan-fried greens. Next time I might make double the glaze so I have a bit to spoon around the plate and over the potatoes.