Instead of sprinkling with chocolate chips, drizzle with melted chocolate. In small microwavable bowl, microwave 1/4 cup miniature semisweet chocolate chips and 1/2 teaspoon shortening uncovered on High just until mixture can be stirred smooth. Place in small food-storage plastic bag; cut off small corner of bag. Drizzle over frosted cupcakes.
If you have only one pan and a recipe calls for more cupcakes than your pan will make, cover and refrigerate the rest of the batter while baking the first batch. Cool the pan about 15 minutes, then bake the rest of the batter, adding 1 to 2 minutes to the bake time.