These are very small flakes (almost a coarse powder) of bright red Korean chillies with very few seeds. They have a very nice sweet flavour that isn't too pungent - a bit like the Turkish Aleppo chilli flakes but without the added salt and oil. Gochugaru flakes are normally used to make kimchi - the Korean pickled cabbage dish - and make the most delicious seasoning for shredded cabbage or vegetable salads.