Sure! The recipe is modified from my Toby Cookies recipe. This batch makes 5 cupcakes but I thought they were rather massive cupcakes for medium size bunnies. You can probably make 8-10 if you use the mini cupcake paper molds.
Ingredients:
1/4 cup of ground rabbit pellet food
1/4 cup of ground rolled oats
1/2 banana, mashed until creamy
1/4 cup of pumpkin puree (fresh or canned) - for dough
1/3 cup of pumpkin puree (fresh or canned) - for "frosting". Set aside this for the last step.
You can easily ground the pellets and oats together in a food processor.
Preheat the oven at 325 degrees F.
Combine all the ingredients, except the pumpkin puree for frosting, and mix well until the dough can be formed into a ball. It should feel almost like playdoh, a bit hard but pliable.
Set out paper cupcake holders (5 regular sized ones or 10 mini sized ones). Use a spoon to scoop out some of the dough and press it into the cupcake holders. Try to get them as uniformly shaped as possible so they will bake evenly. Bake the cupcakes for 30-35 minutes. Turn the oven temperature down to 200. Bake for another 15-20 minutes. You want the cupcakes to bake thoroughly so that the insides are dried out, but not so hot that the edges start to burn. Turn off the oven and leave the cupcakes in the oven to continue to dry out for about an hour.
Take the cupcakes out and let them cool thoroughly. Put the remaining pumpkin puree into a piping bag or just a zip-top bag and snip a hole in the corner. Pipe out the pumpkin in a circular motion over each cupcake to "frost" them.
You can make the cupcakes bigger or smaller as you wish, just be more mindful of how long you have them in the oven. The thicker your cupcake, the longer it will take to dry out the center.
There are also lots of variations that you can do to make cookies and such for your bunnies.
http://www.rabbitsonline.net/f28/baking-your-bunny-54618/