Grease a 9x13 inch pan and set aside

Place 3 tablespoons butter in a microwave safe bowl and microwave on high for 45 seconds. Butter should be fully melted. Do not cool.

Add mini marshmallows to bowl and toss to coat with melted butter. 

Place bowl of butter and mini marshmallows back in microwave for 90 seconds, stopping to stir it once. 

Working quickly, add in the cocoa krispies and mix until they are fully coated with the melted butter and marshmallows. 

Spread the rice krispie treats into the greased 9x13 inch pan. Smooth out the top of the rice krispie treats with a rubber spatula. 

Let cool 10 minutes. 

Now it's time to make your rice krispie treat reindeer. Cut your rice krispie treats into 12 triangles. 

Remove each triangle from the pan.

Using your white icing with a decorating tip, place icing at the top two corners of the triangle and gently press once mini pretzel into each corner. These will be your rice krispie treat reindeer's antlers. 

Next, add glue on your eyes with the white icing. 

Lastly, use the white icing to attach the red hot "reindeer nose" to the bottom corner of the triangle. 

Try not to eat all of your rice krispie treat reindeer in one sitting!