Bitterkoekjesvla

In my grandmother's second notebook, the recipes that look smallest are often the most dangerous to dismiss. Bitterkoekjesvla is one of them: not a grand pudding, not a birthday cake, not something anyone would place under glass in a bakery window. Just vla, that soft Dutch milk custard, with bitterkoekjes crumbled into it until they surrender their almond perfume and go tender in the bowl.

But let me tell you a secret. The name already tells you the whole method, if you listen politely. Bitterkoekjes are little bitter-almond biscuits, made in the old way from almonds, sugar, and egg white, with that faint medicinal edge that makes almond taste older than marzipan and more serious than a sweet shop. Vla is the Dutch answer to custard: pourable, gentle, weekday food, the kind of thing a child eats after supper and later pretends not to miss.

The trick is patience, and it is a very Dutch sort of patience because it asks almost nothing. Make a plain vanillevla, cook it only until it coats the spoon, then fold in the broken biscuits while the custard is still warm enough to coax them open. Too hot and the custard turns sulky. Too cold and the koekjes stay stubborn. Hou het altijd simpel: let the bowl rest in the refrigerator, and by evening the sharp almond has moved through the custard like a story through a family.