Preheat oven to 400 degrees Fahrenheit. Wash parsley and mint and dry thoroughly with paper towel before finely chopping. Measure the brown rice flour into a medium size bowl. Open charcoal capsules into tbsp measuring spoon then add to flour. Add sea salt to flour and then mix very thoroughly. In a small bowl beat egg then add vegetable oil, parsley and mint. Make a well in the flour mixture and add egg mixture stirring to incorporate. Make another well and add as much milk as necessary to make a dough that can be rolled into a ball. Grease cookie sheet. Roll dough into 1" diameter balls. Flatten with a fork. You can vary the size of the biscuit to suit your dog. Makes 2 1/2 dozen when using 1" diameter balls Bake for 12 minutes. Cool on a rack and then store in air tight container.