I started making these for my German Shepherd, Sutton, who was allergic to chicken. It was very hard to find a good quality dog treat at the pet stores that she could and would eat. Both my picky eaters LOVED them! I usually make a double batch when I make them! You can keep them in an air tight container for a week, 2-3 weeks in fridge or about 4-5 weeks in freezer.
Preheat oven to 375 and lightly grease a baking sheet or pizza pan.
In a medium mixing bowl (large if doubling recipe) add flour, baking powder, and oatmeal. Mix together.
Add peanut butter and milk. Stir until a dough forms.
Place dough onto a lightly floured surface and knead it out until it's about 1/4 inch thick.
Use desired cookie cutter or pizza cutter (I like a pizza cutter to make different sizes) and cut dough into desired shapes and sizes.
Optional- Use 1 whisked egg for an egg wash to make the biscuits shiny.
Bake on the lightly greased baking pan for about 20 minutes or until golden brown. Remove from oven and place on a cooling rack. They will harden up when cooled to make a nice crunchy treat!