Peanut Butter Cookies

Beat 90g softened unsalted butter with 2/3 cup firmly packed brown sugar and 4 heaped tablespoons crunchy peanut butter till pale and creamy. Beat in 1 egg. Then stir through 1 cup plain flour, 1/2 teaspoon bi-carb soda and 1/4 teaspoon ground cinnamon. Dollop teaspoons of mix onto trays (allow for spreading) and bake at 180 degrees C for 12 min. Cool on tray then enjoy!
Meant to make 35, but I got 25 from the mix...I like my biscuits a decent size.