Preheat the oven to 350 degrees F. Line 2 sheet pans with parchment paper.
In a large bowl, sift together the flour, baking soda, cinnamon, cloves, nutmeg, ginger, and salt and then combine the mixture with your hands. In the bowl of an electric mixer fitted with the paddle attachment, beat the brown sugar, oil, and molasses on medium speed for 5 minutes. Turn the mixer to low speed, add the egg, and beat for 1 minute. Scrape the bowl with a rubber spatula and beat for 1 more minute. With the mixer still on low, slowly add the dry ingredients to the bowl and mix on medium speed for 2 minutes. Add the crystallized ginger and mix until combined.
Scoop the dough with 2 spoons or a small ice cream scoop. With your hands, roll each cookie into a 1 3/4-inch ball and then flatten them lightly with your fingers. Press both sides of each cookie in granulated sugar and place them on the sheet pans. Bake for exactly 13 minutes. The cookies will be crackled on the top and soft inside. Let the cookies cool on the sheets for 1 to 2 minutes, then transfer to wire racks to cool completely.
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