In the Netherlands and Australia, sprinkles are used as a topping for bread. In the Netherlands this is called “hagelslag,” or “hail-storm” in Dutch. In Australia, this is referred to as “fairy bread.” – WTF Fun Facts
Source: What Is Dutch Hagelslag (Candy Sprinkles) and How Is It Used? (thespruceeats.com)
In Belgium this is done also, and it is called ‘muizenstrontjes’ or mouseshit.