The term 'PIE INGREDIENT' can be broken down into four crossword solutions: MUD (3 letters), PECAN (5 letters), PECANS (6 letters), and PUMPKIN (7 letters). PIE ingredients are typically used to make sweet or savory pies, with the most common ingredients being fruits, nuts, and vegetables. MUD is a type of PIE made with chocolate pudding, while PECAN and PECANS are both types of nut pies. PUMPKIN is a type of PIE made with PUMPKIN puree, spices, and sweetened condensed milk.