Okay, so I finally have some ideas to share. I'm a Vegan myself, and as I also think it would be weird to feed horses dairy or eggs, I've been trying to think of some Vegan treats. I tried to make some Vegan Snickerdoodle cookies today, and after they came out wonderfully (my Non-Vegan family and my brother's friends loved them!) I thought "I bet these would make good horses treats!"
1 3/4 cups All-Purpose Flour
1/4 cup Cornstarch
1 teaspoon Baking Powder
1/2 cup Vegetable Oil
1/2 cup Granulated Sugar
1/4 cup Brown Sugar
1/4 cup Non-Dairy Milk (Soy, Almond, or Coconut*)
1 teaspon Vanilla Extract
Preheat oven to 350 degrees Fahrenheit
Step 1. In a small mixing bowl, combine flour, cornstarch, and baking powder.
Step 2. Mix oil, sugar, brown sugar, non-dairy milk, and vanilla.
Step 3. Slowly combine dry ingredients into the oil/sugar mixturer. Chill in freezer for 10-15 minutes.
Step 4. Scoop by the packed tablespoon into the palm of your hand. Roll into a small ball, and then, using two fingers, press them gently down to form a disc.
Step 5. Bake for 10-12 minutes in preheated oven. Makes 36 small "cookies".
This is just the basic "plain" cookie recipe. (To make actual snickerdoodles, shape them into balls, then roll in Cinnamon sugar before flattening and baking.) I thought that you could do a lot of different variations on this...add shredded apple or carrot, crushed peppermints, or oats, or mashed banana. You could even do garlic, or perhaps peanut butter*.
* Not sure about feeding these things to horses - what do you think?