makes 5 dozen cookies using a 1-inch scoop; adapted from Heidi Swanson, 101Cookbooks.com
Preheat oven to 350°F. Finely mince the crystallized ginger and set aside—really go at it with a big knife, as Heidi says, "a dramatic mince." Whisk together the flour, powdered ginger, baking soda, and salt.
Melt the butter in a small saucepan and cool a bit. Stir in the molasses, granulated sugar, and fresh ginger. When the mixture is just warm, not hot, whisk in the egg. Pour over the flour mixture and stir in the crystallized ginger and lemon zest.
Prepare the turbinado sugar and salt, if using, in a shallow bowl or plate.
Using a small 1-inch diameter cookie scoop, portion the dough and using your hands, roll each into a smooth ball. Roll each cookie in the sugar, then place on parchment-lined cookie sheet pan, one dozen at a time. Bake for 9–10 minutes until the cookies are fragrant and begin to crack on the top and dry at the edges. Transfer to a cooling rack.