There’s a bit of mystery swirling around how long raspberry custard kuchen has been around. Evidence tells us that kuchen comes from a tradition that’s 400 years in the making for coffee and cake. Consider it the German version of tea time in the UK. Friends and family would gather between 3pm and 5pm to partake in kuchen and other treats along with hot coffee or tea. Even though it’s German in origin, it happens to be South Dakota’s official state dessert!