Step 1

Grease a 9 inch pie pan and preheat oven to 350 degrees.

Step 2

To make cookie dough, cream butter and sugars together until light and fluffy, about 3-4 minutes.

Step 3

Mix in peanut butter, eggs and vanilla extract.

Step 4

Add oats, flour, baking soda and making powder and mix until combined.

Step 5

Stir in M&Ms and chocolate chips. Set cookie dough aside.

Step 6

To make cheesecake, beat cream cheese, brown sugar and peanut butter until smooth.

Step 7

Add egg and milk and beat until combined.

Step 8

Press about 3/4 of cookie dough evenly into the pie pan and up the sides.

Step 9

Spread cheesecake mixture evenly over cookie dough.

Step 10

Spread remaining cookie dough on top by dropping spoonfuls of cookie dough on top of cheesecake.

Step 11

Top with a sprinkle of M&Ms

Step 12

Bake for 20-25 minutes, then refrigerate until firm.

Step 13

To make icing, cream butter until smooth.

Step 14

Add peanut butter and mix until smooth.

Step 15

Add powdered sugar and mix until smooth.

Step 16

Add water or milk as needed to get the right consistency for the icing.

Step 17

Pipe icing around the edges of the pie.

Step 18

Serve with chocolate sauce, if desired.