Rob of Acacia.
Take Sloes (not fully ripe) as many as you please; stew them in warm water till soft; pass them through a pulping Sieve; evaporate away the superfluous humidity; then add half its weight of fine Sugar; and boil it up to a due consistence.
This deserves to hold one of the highest places among the strongest Astringents.
Thomas Fuller
Pharmacopeia Extemporanea 1710