In large mixing bowl, cream Peanut Butter, Butter and Brown Sugar until smooth
Add Milk and Vanilla, mix in completely
Add egg, mix in completely
Whisk together dry ingredients
Gradually add dry ingredients to wet ingredients, beating well after each addition
Place cookie dough in small bowl and cover with plastic.
Chill for at least 2 hours - overnight is fine
Preheat oven to 350 degrees F
Using a cookie dough divide batter and roll into balls.
Roll each ball in sugar, coating completely on all sides
Place on cookie sheet
Using a fork dipped in water, make a criss-cross on cookie, flattening slightly
Bake at 350 degrees F for 7-9 minutes or until golden brown
Remove from oven and transfer onto cooling rack
Store in airtight container