Baba au Rhum is a traditional French dessert that consists of a small yeast cake soaked in a rum syrup. The cake is typically light and airy, made with flour, eggs, sugar, and yeast. After baking, it is drenched in a mixture of rum, sugar, and water, giving it a rich flavor and moist texture. Often served with whipped cream or pastry cream, Baba au Rhum can also be garnished with fruits or nuts. This dessert has its origins in Eastern Europe and was popularized in France during the 19th century, becoming a staple in French patisserie.