Jimmies are small, elongated sprinkles used to decorate ice cream, cakes, cupcakes, doughnuts, and other desserts. The term is regional, especially in parts of the United States, and may refer specifically to chocolate sprinkles or more broadly to rod-shaped sprinkles.
They are typically made from sugar with other ingredients that provide color, flavor, and structure. Formulas vary, so check the label for allergens or dietary requirements.
Jimmies differ in shape from the tiny round decorations often called nonpareils or hundreds and thousands. Although all are used as dessert toppings, the names are not exact synonyms everywhere.