Bolo de Bolacha, also known as Portuguese biscuit cake, is a popular dessert in Portugal. It is made by layering Maria biscuits (a type of sweet biscuit) with a creamy mixture made from condensed milk, butter, coffee, and cocoa powder. The layers are stacked and refrigerated until set, allowing the biscuits to soften and absorb the flavors of the creamy mixture. Bolo de Bolacha is a simple yet delicious dessert that is often enjoyed during special occasions and celebrations.