Can I use a pre-made gingerbread spice mix?
Yes, if that's what you have, the pre-mixed spice mix can be used. Just know that some of the pre-mixed ones don't include all the spices in the recipe. For example, the McCormick mix doesn't include cloves so the final taste may be slightly different than the recipe. Substitute 1 1/2 tablespoons of gingerbread spice mix if using it instead of individual spices.