Mix all ingredients together until well blended. Knead dough two minutes on a lightly floured surface. Roll to 1/4" thickness. Bake on an ungreased cookie sheet for 30 minutes in a 300 degree oven. Cool. Melt carob chips in microwave or saucepan. Dip cool biscuits in carob or lay on a flat surface and brush carob over the biscuits with a pastry brush. Let cool.