Boston Cream PIE is a classic American dessert that consists of a yellow cake filled with custard or cream and topped with chocolate glaze. The crossword solutions for the term Boston Cream PIE are PIE (3 letters), PIES (4 letters), and SODAS (5 letters). PIE is a shortened form of the word 'pies' which refers to the type of pastry used in the dessert. PIES is the plural form of the word 'PIE' and refers to multiple pies. SODAS is an acronym for 'sugar, oil, dough, and syrup, ' which are the main ingredients used to make the cake portion of the dessert.