Why can you not freeze cookies with frosting on them?

The issue isn't that you *can't*, but that the frosting texture might change after freezing and thawing.

Here's why:

* Frosting separation: Some frostings, especially those with higher butter content, can separate when frozen, becoming oily or grainy upon thawing.

* Texture change: The frosting can become too hard or brittle after freezing, making it less appealing to eat.

* Moisture loss: Freezing can cause some moisture to evaporate from the frosting, leaving it drier.

Tips for freezing frosted cookies:

* Choose a stable frosting: Buttercream and royal icing generally hold up well to freezing. Avoid frostings that are heavily reliant on whipped cream or cream cheese.

* Freeze individually: Place cookies on a baking sheet lined with parchment paper and freeze until solid. This prevents them from sticking together.

* Store in airtight containers: Once frozen, transfer cookies to freezer-safe bags or containers to prevent freezer burn.

* Thaw at room temperature: Allow cookies to thaw at room temperature for a few hours before serving.

Important note: While you can freeze frosted cookies, they may not be as perfect after thawing as they were fresh. Consider this when planning your baking and freezing.