Dissolve instant coffee in hot water. Beat shortening, brown sugar, egg, vanilla and coffee mixture in large bowl with electric mixer until light and fluffy. Mix in flour, baking powder, cinnamon, nutmeg and salt.
Divide dough into two equal parts. Shape each half into a roll 7-inches long by 1-1/2-inches in diameter. Roll in chocolate decorator bits, pressing lightly. Wrap tightly. Refrigerate at least 2 hours.
Heat oven to 375 degrees F. Cut rolls into 1/4-inch slices. Place slices 1-inch apart on ungreased baking sheet.