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Use "butteriness" in a sentence
"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."
"It had a great flavor, with a nice butteriness and a very subtle tang from the long first rise."
"I like the butteriness and sugary crunch of a plain palmier, especially with a cup of tea or coffee."