In a bowl, mix together the first 9 ingredients of the mince stuffing. Mix well and marinate the mince for 1 hour.
Heat oil in a saucepan. Add the marinated mince and cook on high heat for 30 seconds by stirring constantly.
Cover and cook on low flame till the mince is fully cooked. Dry out the liquid if any by cooking without a lid.
Then add the last seven ingredients and cook on high heat for 1 minute. Stir well, check the salt and adjust all the spices.
Remove from heat and cool it before using it as a stuffing.
Preheat the oven to 250 deg C.
Take each marrow and cut it into half lengthwise and scoop out the pulp from the center to make it look like a boat.
Drizzle some olive oil and bake for 15 minutes.
Stuff each marrow with mince as much as it can hold. Sprinkle some cheese and butter on each of them and again bake till the cheese melts. (for about 10 to 15 minutes)
Serve hot as a snack or as a light dinner.