Peanut Butter Fingers

Step 1
Preheat the oven to 325 degrees F (165 degrees C). Grease a 9x13 inch baking pan.

Step 2
In a large bowl, cream together the butter, white sugar and brown sugar until smooth. Beat in the egg, 1/3 cup peanut butter and vanilla. Combine the flour, baking soda and salt; stir into the peanut butter mixture. Finally, mix in the rolled oats. Spread the dough evenly into the prepared pan.

Step 3
Bake for 20 to 25 minutes in the preheated oven, or until edges are firm. Remove from the oven and sprinkle the chocolate chips in a single layer over the top. Let stand for 5 minutes, then spread to cover. Allow to cool. In a small bowl, mix together the confectioners' sugar, 1/4 cup peanut butter until smooth. Stir in milk one tablespoon at a time until a drizzling consistency is reached. Drizzle over bars when cool. Cut into bars.