1. Preheat oven to 400 F. degrees. 2. Place flour and garlic salt in a large bowl. Stir in bacon fat. Add cheese and egg. Gradually add enough milk to form a dough. Knead dough and roll out to about 1 inch thick. 3. Use dog bone cookie cutter to cut out dough. Place on greased cookie sheet. Bake about 12 minutes, until they start to brown. Cool and serve.