Sift together the flour, sugar, baking powder, nutmeg and salt. Mix together the buttermilk, bacon, butter and egg, and incorporate into the dry ingredients. Stir until smooth; the batter should just hang onto a spoon. If the batter is a bit dry, add a splash of buttermilk. Rest the batter in the refrigerator for 30 minutes before portioning. In a large, heavy-bottomed saucepan, pour enough oil to fill the pan about one-third of the way. Heat over medium heat until a deep-frying thermometer inserted into the oil reaches 350 degrees F.
On a floured surface with floured palms, portion out the batter using a teaspoon. Roll the portioned dough into little balls, and then drop the batter into hot oil, turning until dark and golden brown on all sides, a few minutes. Remove and drain. Repeat with the remaining dough.
Smother the doughnuts in powdered sugar and maple syrup, and serve while hot.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.