Marinate deboned chicken drumsticks in kalamansi juice, sugar and soy sauce. Combine all the ingredients for the stuffing. Process the mixture using a food processor to blend mixture well. Fill each chicken legs. Wrap each chicken leg with foil to seal in stuffing. Bake or steam for 60 minutes. Open foil and brush chicken with some butter. Bake until golden brown. Cool. Pack in a lunch kit with rice. Add a side dish of cheesy oven French fries and some catsup or gravy.