Preheat your oven to 200C. Line a baking tray with baking paper.
Place bones on the baking paper and sprinkle with salt. place slices of garlic along the bone and sprinkle with rosemary.
Roast for 20-25 mins until golden then remove. The marrow is best served on fresh sourdough bread or we used the Paleo Hero bread for a grain free option.
Scoop the marrow out of the bone and spread on the bread and dig in!