Step 1: Line a large baking sheet with parchment paper or wax paper. Set aside.
Step 2: In a microwave-safe bowl, combine the white chocolate chips (and peanut butter, if using). Microwave in 30-second intervals, stirring thoroughly after each, until the mixture is smooth and completely melted. Be careful not to overheat the chocolate, as it can seize.
Step 3: Add the crispy chow mein noodles to the melted white chocolate mixture. Gently fold with a spatula until all the noodles are evenly coated in the chocolate.
Step 4: Drop spoonfuls of the mixture onto the prepared baking sheet. If using, immediately decorate with sprinkles, chopped nuts, or other desired toppings before the chocolate sets.
Step 5: Refrigerate the Ting-a-Lings for at least 30 minutes, or until they are firm and set. This step is crucial for achieving their signature crunch.
Step 6: Once firm, carefully remove the White Chocolate Ting-a-Lings from the parchment paper and store them in an airtight container at room temperature or in the refrigerator.