Preheat oven to 180°C and line a baking tray with parchment paper. Cut the pumpkin in a half, Peel the skin off, then arrange on the baking tray. Bake for 30 minutes, until soft.
Meanwhile, in a small bowl combine melted butter, rosemary, garlic, maple syrup, all spice, salt and pepper. Take the pumpkin out from the oven, don’t turn the heat off. Using a sharp knife thinly slice the pumpkin half way down and brush with the butter mixture. Pop back in the oven. Bake for another 20-30 minutes until golden brown then transfer to a large serving dish and enjoy!