Can I make the dough ahead of time?
Yes, wrap the dough in plastic and refrigerate up to 24 hours before rolling and coating.
Why aren't my cookies holding the sprinkles?
Roll the dough balls in sprinkles immediately after shaping, while slightly sticky. If dough dries out, slightly dampen your hands before rolling.
How do I prevent the cookies from spreading too much?
Use room-temperature butter and eggs, don't overmix the dough, and chill shaped balls for 15 minutes before baking.
Can I use a different type of sprinkle?
Yes, but nonpareils (tiny ball sprinkles) work best; rod sprinkles or jimmies may not adhere as well.
How soft should the dough be when rolling in sprinkles?
Soft enough that sprinkles stick but firm enough to hold their shape—if too warm, chill for 10 minutes between batches.