Yeast cake is a type of baked good that is made with yeast as a leavening agent. The two crossword solutions for the term 'yeast cake' are CRUMPET and BABA. CRUMPET is a type of yeast cake that is made with flour, milk, salt, and yeast and is usually served toasted with butter. BABA is a type of yeast cake that is made with rum-soaked raisins and is usually served with a sweet topping such as whipped cream or fruit.