Three Layer Peanut Butter Bars

Found this recipe on the web -- looks good, and different from some of the other peanut butter bar recipes out there! NOTE: Cooking time does not include cooling/chill time.

• Ready In: 45 mins
• Yields: 18 bars

Ingredients

• 1  cup flour
• 1⁄4 cup brown sugar, firmly packed
• 1⁄2 teaspoon baking powder
• 1⁄4 teaspoon baking soda
• 1⁄2 cup butter
• 1  tablespoon vanilla extract
• 3  cups miniature marshmallows
• 1 (14 ounce) can  condensed milk
• 1⁄2 cup creamy peanut butter
• 3  ounces  chow mein noodles
• 1  cup peanuts, coarsely chopped

Directions

1. Preheat oven to 350º. In medium bowl, combine flour, sugar, baking powder and baking soda; cut in margarine and 1 teaspoon vanilla until crumbly.
2. Press firmly on bottom of ungreased 13x9-inch baking pan.
3. Bake 15 minutes at 350 degrees or until lightly browned.
4. Top evenly with marshmallows; bake 2 minutes longer or until marshmallows begin to puff.
5. Remove from oven; cool.
6. While layers are baking, in heavy saucepan, over medium heat, combine condensed milk and peanut butter ; cook and stir until slightly thickened, 6 to 8 minutes.
7. Remove from heat; stir in noodles, nuts and remaining 2 teaspoons vanilla. Spread evenly over marshmallows.
8. Cool. Chill. Cut into bars.