"Jumbles are one of the earliest types of cookies. This is from the handwritten 1862 household book of Mrs. Priscilla Jemison," Rae Katherine says.
Beat butter at medium speed with an electric mixer until creamy; gradually add sugar, beating well. Add eggs, 1 at a time, beating until blended after each addition.
Combine flour, baking soda, and mace; add to butter mixture, beating until blended.
Divide dough into 8 portions; divide each portion into 12 pieces. Roll each piece into a 3-inch log, and gently press ends together to form a circle.
Place 1/3 cup sugar in a saucer. Gently press 1 side of cookies in sugar, and place, sugared side up, on greased baking sheets; flatten cookies slightly.
Bake at 350° for 10 to 12 minutes or until cookies are lightly browned. Transfer to wire racks to cool.