Whats a mace blade???!
Answers: It's what you call a piece of mace before its ground into powder.
Mace is a lacy covering over the nutmeg "nut" called an aril. When broken off the "nut" it resembled a blade, and was called that.
People would grate the blade, just as they would grate the nutmeg itself.
a piece of underground mace, but you can use one teaspoon of mace for a tablespoon of mace blade check out below