Preheat oven to 375 degrees.
Finely chop crystallized ginger with food processor or knife & cutting board.
Cream butter and sugar in large mixing bowl. Add eggs, molasses, vinegar, and vanilla.
In a separate bowl, combine dry ingredients.
Beat flour mixture into butter mixture. Add chopped crystallized ginger.
Using a 1-ounce scoop to portion, roll into 1-1 ½” balls. Roll balls in extra sugar and place on baking sheet 2” apart. Press cookies to flatten just slightly.
Bake 10-12 minutes. Let sit a few minutes on baking pan, then remove from pan and place on a cooling rack. Let cookies cool completely.
Keep cookies in a sealed container for freezer bag at room temperature for up to three weeks.
Store cookies in a sealed freezer bag (labeled and dated) in the freezer for up to three months. Remove from bag and thaw at room temperature when ready to eat.
Enjoy!