For the birthdays of each of her grandchildren, Babulinka used to bake a krendel, a traditional Latvian cake in the shape of a B. The classic shape was really a figure eight; it just looked like a B to Babulinka's youngest grandchild, and so it became "the B cake."
The cake isn't what most children might imagine for a birthday cake. After all, it has no frosting, no layers, and no candles. Krendel (pronounced kryen-dzel) is low and yeasty with a streusel topping, more like coffee cake or a babka.