I bet the dogs LOVE those liver brownies! I have a hard time with raw meat, especially organ meat...really grosses me out so I have to buy them already packaged Alot of the recipes I looked at when I was looking for the right dog cookie to bake and bring to Hannah & Tucker called for blending different meats/organs in the blender! Now that is gross! I would never feel good about using the blender for my fruit smoothies again because I would have mental pictures of ground up heart in my blender!!! If I make dog cookies it has to be either vegetarian or meat broth. It is always healthier to make their own cookies instead of buying them already boxed, but that's the only down side that my dogs experience from me being a vegetarian.