Holland & Barrett Flapjack is a hearty snack, made from wholegrain British oats. Flapjacks don't always have to be baked, the chunky texture and unbaked recipe of our flapjacks mean this bar is sweet, soft, and chewy. Flapjacks don't always have to be baked, the chunky texture and unbaked recipe of our flapjacks mean this bar is sweet, soft, and chewy. Source of Fibre. Plant-based Made with Wholegrain British Oats. Holland & Barrett International Limited, Barling Way, CV10 7RH, UK Holland & Barrett Limited, 45 Henry St, D01 E9X8, Ireland