In a small bowl combine the maple sugar, minced onions, paprika, garlic powder, green pepper flakes, chili powder, cornstarch, ground mustard, celery seed, black pepper and salt until evenly distributed.
Transfer seasoning mix to an airtight container. Label the container with contents and date. Store in a cool, dry place for up to 6 months.
This mix will season approximately 2 pounds of ground beef. Use 2-1/2 tablespoons per pound of ground beef.If using spice right away, brown sugar can be used in place of maple sugar. If planning on storing, substitute white granulated sugar. The moisture content in brown sugar may cause your stored spice to clump.This recipe can be easily multiplied.