Step 1

In a large bowl, combine flour, pudding mix, sugar, and baking powder.

Step 2

In another bowl, combine egg, melted butter, oil, milk, and vanilla.

Step 3

Mix the egg mixture into the flour mixture, stirring until just blended.

Step 4

Mix in pistachios.

Step 5

Press the dough into a lightly greased 9x13-inch pan.

Step 6

Bake at 350 degrees for 18-22 minutes, or until edges are lightly browned.

Step 7

Cool completely in the pan on a wire rack.

Step 8

In a large mixing bowl, combine cream cheese, butter, and vanilla.

Step 9

Gradually add the powdered sugar, and beat until light and fluffy.

Step 10

Spread over the cooled bars, and cut into squares.

Step 11

Garnish with additional chopped pistachios, if desired. EAT!!