Discussion--What a biscuit is depends on where you live. For the U.S. and most English-speaking North American countries, a biscuit is often a dinner roll, made primarily of flour, water, and shortening. The test of a cook is whether his or her biscuits are light, airy, and flaky as desired or are the consistency of the proverbial hockey puck. In
Great Britan, biscuit refers to a sweetened, crisp cake; what U.S. residents call cookies or shortbread. Apparently, the British lack an equivalent term for the U.S. biscuit. I suspect they just use the more general term roll.