Preheat oven to 350°F Combine flour, oats and baking powder in a large bowl. Mix the milk, peanut butter and molasses until smooth, add to dry ingredients. Knead dough with hands, it will be stiff. Roll out to 1/4" thick and cut into shapes.
Bake for 20 minute or until lightly browned.
Turn off oven and leave in oven until cool. Store in airtight container.