The term 'Buttery Bun' can be broken down into four crossword solutions: BRIOCHE (7 letters), ALE (3 letters), Richest (7 letters), and DANISH (6 letters). BRIOCHE is a type of French bread that is made with butter, eggs, and milk. ALE is a type of beer that is brewed using a warm fermentation method. Richest is an adjective that means having the most wealth or resources. DANISH is a type of pastry that is made with a sweet, buttery dough. Oleo is a type of margarine or butter substitute. All of these ingredients come together to create a delicious Buttery Bun.