found a recipe last summer and then tweaked it a bit and discovered a great, cheap and healthy way to give Bruce a treat that will also cool him off and take more than 2 seconds to eat...these things last about as long as it takes him to eat one of those jumbones, but costs next to nothing.
take a muffin pan and fill each cup with dry dog food
fill each cup with hot water and let sit a few minutes until it soaks in
then add either cold water or low sodium broth to fill the cups back up
pop them in the freezer
once they're frozen, run a bit of water on the back of the pan and the treats will pop right out. *I then drop them into sandwich bags and toss them back in the freezer. *Keeps them separate adn easy to handle and you can reuse the bags. *I usually make about 2 dozen at a time.