The quality or degree of having a nutty flavor or texture.(noun)
The quality or degree of having a nutty aspect; craziness or zaniness.(noun)
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Use "nuttiness" in a sentence
"The cookies have a very subtle nuttiness from the ground flaxseed, but are otherwise fairly typical oatmeal cookies."
"The cookies actually taste like browned butter, since they are very buttery and have a really rich nuttiness from the toasted pecans that are mixed into the dough."
"The greens themselves have a slightly sour nutty taste and the nuttiness is further enhanced with peanuts."