Muisjes are small sugar-coated aniseed comfits, eaten in the Netherlands on a buttered rusk (beschuit) at the birth of a child. The convention is one of the more particular Dutch food customs: a baby is born; visiting friends, family, and colleagues are presented over the following weeks with a beschuit met muisjes; the colour of the comfits is determined by the baby's sex, with pink-and-white for a girl and blue-and-white for a boy. The custom is observed across virtually all Dutch households, transcends class and region, and has remained substantially unchanged for more than a century.
The colour convention is sufficiently fixed that the Dutch royal family observes it for births of members of the House of Orange — with the addition that an orange variant is sometimes used for royal births specifically (the orange of the dynasty, not the fruit), most famously for the births of Princesses Catharina-Amalia (2003), Alexia (2005), and Ariane (2007). The orange muisjes are produced for these occasions by special arrangement with De Ruijter and are sold in limited supermarket quantities for several weeks following the birth. The same orange variant has also been used for occasional non-royal national celebrations.
The structure of the candy
A muisje is, technically, a comfit: a small core (in this case an aniseed seed) coated by repeated dipping in sugar syrup until a thick uniform sugar shell is built up around it. The traditional aniseed core supplies a faint anise flavour and a slight chewiness; the sugar shell is the dominant taste impression, and supplies the characteristic crunch on the first bite. The candy is small (3–5mm in diameter), light, and is eaten by the spoonful rather than individually. The white-coated and coloured-coated varieties are produced in parallel; the colour is added to the sugar syrup at the final coating stages.
The form is part of a wider European comfit tradition that runs through French dragées, Italian confetti, Spanish peladillas, and several other regional variants. What distinguishes the Dutch muisjes from these cousins is the small size of the core (most other European comfits use a larger almond, hazelnut, or seed), the bicolour packaging convention, and the specific cultural slot the candy occupies: muisjes are essentially never given as a wedding favour or as a generic confection in the way the other European comfits are. They are, in Dutch practice, almost exclusively a birth confection.
De Ruijter
The Dutch firm De Ruijter, founded in Sneek (Friesland) in 1860 and now headquartered in Wormer, has held the de facto monopoly on industrial muisjes production for more than a century. The firm's pink-and-white and blue-and-white packaging — distinctive cylindrical paper boxes, unchanged in basic graphic design since the 1950s — is the form in which most Dutch consumers encounter the product. The De Ruijter monopoly is not absolute (several smaller producers exist, and supermarket house brands occasionally carry their own labels) but the firm's market dominance is sufficient that "De Ruijter muisjes" is, for most Dutch buyers, simply "muisjes."
De Ruijter has, since the early twentieth century, been the principal Dutch breakfast-comfit firm and is also the dominant producer of vruchtenhagel (fruit sprinkles), the parallel breakfast-toppings category. The two categories — comfits and sprinkles — share a manufacturing approach (both involve applying coloured sugar shells to small cores) and have historically been produced in the same factory. The acquisition of De Ruijter by H.J. Heinz in 1973 and its subsequent passage through several corporate ownerships has not substantially changed the product or the firm's market position; the Dutch consumer continues to buy De Ruijter muisjes essentially without alternative consideration.
The colour convention and its variants
The pink-for-girl, blue-for-boy convention dates from the early twentieth century and is consistent with the broader Western convention that has since become the dominant pattern for infant-related goods. (Reference works occasionally note that the colour convention was historically reversed in some European traditions — pink for boys, blue for girls — into the early twentieth century. This reversal is documented but appears never to have applied in the Netherlands.) The white-coated comfits are mixed in approximately equal proportion with the coloured ones; the visual effect on a buttered beschuit is a roughly even speckling of white and pink, or white and blue, with the specific ratio varying slightly from box to box.
The orange royal variant has been used for several recent royal births, beginning with Princess Catharina-Amalia in 2003. The variant is essentially the standard product with the colour replaced by Dutch royal orange, and is produced by De Ruijter under specific arrangement for each royal birth. The supermarket release of the orange variant is conventionally timed to coincide with the public announcement of the birth and is typically available for several weeks afterwards.
| Variant | Use |
|---|---|
| Roze (pink) en wit | Birth of a girl |
| Blauw (blue) en wit | Birth of a boy |
| Oranje en wit | Royal birth (House of Orange) |
| Gestampte muisjes | Crushed white-only comfits, used as a sprinkle topping rather than as a birth confection |
The beschuit met muisjes ritual
The standard Dutch ritual for celebrating a birth is the beschuit met muisjes: a Dutch rusk (beschuit), buttered with full-fat butter to the edges, and topped with a generous spoonful of muisjes pressed lightly into the butter. The visiting friend or relative is offered the rusk, eats it more or less at the door, and accompanies the eating with a brief congratulatory exchange. The ritual is consistent across the country: in 2018, market research by De Ruijter estimated that approximately 90% of Dutch births involve some form of beschuit met muisjes consumption by visiting friends and family, with the average household preparing somewhere between 50 and 200 rusks during the post-birth visiting period.
The custom has shifted over recent decades to accommodate changing patterns of work and visiting. Where the historical model involved visitors arriving at the family home to greet the newborn, contemporary practice often sees the muisjes-and-rusks brought to the workplace by the new parent on their first day back, or distributed at school by older siblings, or shared at the homecoming meeting with extended family. The form remains consistent; the venue has diversified.
Crushed muisjes — gestampte muisjes
A second use of the muisjes product is the gestampte muisjes — crushed comfits, sold in their own packaging, used as a sprinkle topping for bread in the manner of hagelslag. The crushed product is white-only (no coloured variant), and is an everyday Dutch breakfast topping rather than a birth confection. The flavour is dominated by the aniseed cores, which after crushing are exposed and contribute more directly to the eating experience than they do in the whole-comfit form. Gestampte muisjes are an acquired taste — the aniseed is more assertive than most non-Dutch palates expect on a breakfast bread — and the product has a smaller market share than the chocolate hagelslag with which it shares the supermarket aisle.
As a cultural marker
Muisjes are, with hagelslag, the Dutch confectionery products with the strongest unbroken cultural transmission. Their use at births is essentially universal across Dutch households, the colour convention is honoured without irony, and the De Ruijter packaging — unchanged for generations — is part of the visual texture of any Dutch family kitchen with a newborn. The product is also one of the small set of Dutch sweets that has not been the subject of any of the marketing reinventions or extensions that the supermarket trade has applied to most of its other categories: muisjes, in 2026, are essentially what muisjes were in 1956.
This continuity reflects, in part, the cultural function of the product. Muisjes are not eaten for pleasure in the way most other Dutch sweets are; they are eaten as part of a ritual, and the ritual is conserved by being predictable. A pink-and-white muisje on a buttered beschuit, given to a visiting aunt in the second week after a daughter is born, is the same gesture in 2026 that it was in the kitchen of any Dutch household in any year of the past century. The candy persists because the ritual persists, and the ritual persists because the candy provides the small, reliable, immediately recognisable token by which the new parent and the visiting friend together mark the event.