In a large bowl cream the butter and sugar until light and creamy. Add in the peanut butter, egg and vanilla. Mix together until well combined.
In a large bowl cream the butter and sugar until light and creamy. Add in the peanut butter, egg and vanilla. Mix together until well combined.
Tip in the dry ingredients and use a rubber spatula to fold them together until nearly all are combined. There should be a few streaks of flour remaining.
Tip in the dry ingredients and use a rubber spatula to fold them together until nearly all are combined. There should be a few streaks of flour remaining.