1. Preheat oven to 350 degrees. Lightly grease a cookie sheet.
2. Mix together flour blend, cloves, ginger, cinnamon, baking soda, xanthan gum and salt. Set aside.
3. In separate bowl, mix butter, molasses and sugar together. Beat in egg.
4. Slowly stir in dry ingredients. Dough will be sticky. Refrigerate for several hours.
5. Divide dough into three equal parts. Roll into logs between 1/2 to 2-inches thick, depending on the size of your cookies.
6. Cut logs in slices about 1/4 to 1/3-inch thick. Press both sides of each slice in sugar. Place on prepared cookie sheet, leaving 2 inches between each cookie.
7. Bake in preheated oven for 8 to 10 minutes. Cool completely and transfer to a rack. Store cookies in an airtight container.
8. TIP If dough is too sticky to shape into a log, place each portion of dough onto a piece of plastic wrap and roll it up. Refrigerate until dough is stiff enough to slice.