This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The state or quality of being buttery.

"The apple filling is baked into the cookie dough crust, and once they come out of the oven, the cookies are topped off with a bourbon caramel sauce that adds a decadent sweetness and butteriness to the treats."

bitterness