Whisk all four spices together in a small bowl until fully combined and no color streaks remain. Transfer to an airtight jar.
Notes
Storage: Store in an airtight jar in a cool, dark place for up to six months. Label the jar with the date mixed. Freshness check: Open the ground ginger before mixing. If it does not smell sharp and peppery, replace it before making the blend. Yield: This recipe makes approximately 13 teaspoons of blended spice. Scale up and store extra for the full holiday season. Use: Substitute 1 teaspoon of this blend anywhere a recipe calls for gingerbread spice, or adjust to taste in cookies, cakes, quick breads, and hot drinks.