Combine molasses, brown sugar, and butter in a large saucepan. Heat and stir until melted. Cool mixture about 20 minutes. Stir together flour, cinnamon, baking soda, nutmeg, and pepper in a large mixing bowl; set aside.
Beat eggs into cooled molasses mixture with a wooden spoon. Stir in flour mixture. Cover dough with plastic wrap, and chill for 1 to 2 hours or till easy to handle.
Divide dough into four equal portions. Roll each portion on a lightly floured surface into a 10-inch rope. Cut ropes diagonally into 3/4-inch pieces. Brush the top of each piece with milk, and dip in coarse sugar or granulated sugar; place 2 inches apart on an ungreased baking sheet.
Bake in a 375-f degrees oven for 7 to 8 minutes or till edges are firm and bottoms are lightly browned. Transfer to wire racks and cool.