Cool and peel sweet potatoes. Mix together sweet potatoes, brown sugar, Bisquick mix and water. Combine ingredients thoroughly. The mixture wil be moister than regular biscuits. Flour table. Roll biscuit mix to 1/2" thickness. Cut with a 2 1/2" cutter. Place on greased sheet pan.Bake in 350° preheated oven for 16-18 minutes. The moist mixture does not allow the biscuits to rise a great deal. A mindful eye should be kept on the biscuits so they do not overcook. Yields 1 1/2 dozen.