Frosted Cookies
Frosted cookies are baked cookies, most often rolled sugar cookies or shortbread cut into shapes, finished with a sweet topping layer after baking rather than mixed into the dough. The two dominant frosting styles are royal icing, which dries hard and glossy and lets cookies stack without smearing, and buttercream or cream cheese frosting, which stays soft and needs to be eaten within a few days.
Varieties
Royal icing cookies and buttercream-frosted cookies are genuinely different products, not just a style choice. Royal icing dries hard within hours, ships and stacks well, and is the standard for detailed decorating. Buttercream stays soft indefinitely, tastes richer, but limits how cookies can be stored or transported.
Buying tips
When buying decorated cookies rather than making them, choose ones with icing that looks fully set and matte or evenly glossy, not tacky or sliding. Avoid cookies with visible cracks radiating from the center of the icing, which usually means they were stacked or handled before the frosting fully cured.
Substitutes
Royal icing (egg white or meringue powder, powdered sugar, water) — 1:1 by volume
Dries hard and matte-to-glossy within 6-8 hours, ideal for stacking, shipping, and detailed piping work.
Buttercream frosting — 1:1 by volume
Softer and richer than icing, but never fully hardens, so cookies must be stored in a single layer or with parchment between them.
Simple glaze icing (powdered sugar and milk or lemon juice) — 1:1 by volume
Thinner and less structured than royal icing; sets to a semi-firm shine in about 2 hours but stays slightly tacky.
Cream cheese frosting — 1:1 by volume
Tangier and softer than buttercream; requires refrigeration and is best for cookies eaten within 2 to 3 days.
Melted chocolate or candy melts — not a direct swap
Works as a dip or drizzle rather than a spread; sets firm at room temperature in about 15 minutes, but can't be piped with fine detail like royal icing.
Storage
Store frosted cookies in a single layer in an airtight container at room temperature for 3 to 5 days once the frosting has fully set. Royal-iced cookies that have dried overnight can be stacked with parchment or wax paper between layers. Buttercream- or cream cheese-frosted cookies should stay in a single layer and, if made with cream cheese, go in the refrigerator. For longer storage, freeze undecorated cookies and frost after thawing, since frozen icing tends to crack or sweat as it warms.
How to use
Frosted cookies are typically made for holidays, gifts, and decorated cookie orders where the design matters as much as the flavor. Royal icing is used for outlining and flooding designs, piped lettering, and cookies meant to be stacked or shipped. Buttercream and cream cheese frostings are better for everyday drop cookies where a smooth swirl or spread finish is enough.
What it pairs with
Pairs well with black coffee or unsweetened tea, which cut through the sugar of the frosting. Cold milk is the standard match for kids' versions. Avoid pairing heavily frosted cookies with other very sweet desserts in the same course.
Nutrition
A single frosted sugar cookie typically runs 150 to 250 calories depending on size and frosting thickness, with the frosting itself contributing most of the added sugar. Royal icing is lower in fat than buttercream since it contains no butter, but both are concentrated sources of sugar with little nutritional value beyond calories.
FAQ
Why does the frosting on my cookies crack after it dries?
Royal icing cracks when it's applied too thick or when cookies are moved to a cold environment (like a fridge or freezer) before it has fully cured; let it dry at room temperature for at least 6 hours undisturbed.
Why do frosted cookies sometimes look wet or sweaty after storage?
This happens when moisture from the cookie or humid air condenses under the icing, common when cookies are sealed in a container while the frosting is still slightly warm or underdried.
Can frosted cookies be frozen?
Royal-iced cookies freeze reasonably well if fully dried first and layered with parchment, but buttercream and cream cheese frostings tend to separate and go grainy after thawing.
What's the actual difference between icing and frosting?
Icing is thinner and dries to a firmer, often glossy finish (like royal icing or glaze), while frosting is thicker, fluffier, and stays soft, like buttercream or cream cheese frosting.
Have frosted cookies on hand? Find recipes with our Recipe Generator →