Whisk together milk and peanut butter, will take 2-3 minutes to combine
Add wet ingredients to large bowl with flour and baking powder, mix until combined
Mix by hand if needed to finish
Turn dough onto floured surface. Knead and shape into large flat circle
Use cookie cutter to cut out dough
Place 2″ apart on baking sheet
Bake 15-20 minutes *depending on cookie size, or until lightly browned, at 375F
Cool prior to serving. Great for freezing.