This was my treat to bring to a family party:
I bought these little brownies from Costco, then I made a buttercream frosting, and topped with crushed candy canes.
Here's another tip: Hand your kids a bag of candy canes (you can leave the paper on, its easier to pull off once their crushed), a rolling pin, and let them have at it!
Here's my buttercream recipe:
Buttercream Frosting2 sticks butter, room temperature
6 cups powdered sugar
1 tsp vanilla
1-5 Tbsp milk
few drops food coloring (optional)
With hand mixer, beat butter until light and fluffy. Add powdered sugar and beat until texture is like small beads. Add vanilla and 1 Tbsp milk. Beat until fully combined. Continue adding milk, a tablespoon at a time until you have reached desired consistency.
Make this work any time of year: use different color food coloring and toppings (use candies, sprinkles, nuts, etc)