For those of you who don't know, an aprium is a sweet late spring and early summer stone fruit that is 75% apricot and 25% plum. Its natural sweetness makes it the perfect fruit to use in desserts, preserves, salads, or, like in this case, in an ice cream-less milkshake. Apriums look like apricots, except for their smooth skin (like a plum). Handle them with care to avoid bruises; and if you buy them unripe, keep them in a paper bag until they become soft enough to eat. Once they are ripe, keep them refrigerated, search for a few good aprium recipes, and enjoy!