Mace isn't a spice that you use every day. Save yourself some cash and cupboard space by using one of these substitutes when you come across a recipe that uses it:
Prep Time: 1 minute
Total Time: 1 minute
Substitute the mace called for in your recipe with an equal amount of nutmeg. Since mace is the membrane that surrounds nutmeg, the flavor will be similar.
You can also use allspice, cinnamon, ginger or pumpkin pie spice. Replace measure for measure.