1. Preheat oven to 325 degrees F. Spray cookie sheet with cooking spray. Combine flour, oats, and carob powder in a large bowl.
2. Add flax mixture, peanut butter, and oil. Begin to mix together. Add water a little a time until mixture sticks together well and makes a nice ball; not too dry, not too wet. Add more water, if necessary.
3. Using half of the dough at a time, roll or pat dough to 1/2" thick. Using cookie cutters, cut out treats. Gather scraps and re-roll to cut additional treats.
4. Place on cookie sheet. They can be placed very close together because they do not spread. Bake 5 to 7 minutes. The less time in the oven the softer they will be. They will crisp up more as they cool. If your dog likes crispy treats go for the maximum time.
The cooking time is based on using 1 1/2" cookie cutters and rolling to 1/2" thick. Adjust time for larger or smaller treats.
Source of recipe: I created this recipe for my sweet girl Tallulah.