Vlaai is a sweet pie originating from the province of Limburg. It consists of a yeast pie base and a filling of creamy custard which is topped with streusel, a crumbly topping. The pie has a rich history: it was first consumed by Germanic tribes who used to drizzle the dough with fruit juice or honey, and later, it was used in monasteries as a special, sacrificial bread.

Over the years, vlaai was brought over to Maastricht, where it was used for festivities and celebrations such as birthdays and weddings. Today, there are numerous varieties of vlaai–filled with chocolate, rice pudding, or fruits such as cherries, strawberries, apples, and bananas.