Steam or roast your pumpkin until it is just half way cooked.
Cook your bacon and onion in the oven OR fry it in a saucepan.
Combine pumpkin, bacon (chopped) and onion in a saucepan with garlic and vinegar and fry for 2-3 mins.
Add remaining ingredients and simmer for 45 mins. Mash ingredients as far as possible and add some water if bottom begins to burn.
Adjust flavours to taste and remove from stove. Allow to cool before sealing in a jar.