Double Delicious Cookie Bars

From "All Time Favorite Recipes". For fun, try substituting Butterscotch or white chocolate chips for the semi-sweet and/or peanut butter chips. Make sure you cool it completely or the bottom will crumble!

• Ready In: 40 mins
• Serves: 24-36
• Yields: 2-3 dozen bars

Ingredients

• 1⁄2 cup butter
• 1 1⁄2 cups graham cracker crumbs
• 1 (14 ounce) can sweetened condensed milk
• 2  cups  semi-sweet chocolate chips
• 1  cup  peanut butter chips

Directions

1. Preheat oven to 350°F.
2. In 13x9-inch baking pan, melt butter in oven.
3. Sprinkle crumbs evenly over butter.
4. Pour milk evenly over crumbs.
5. Top with remaining ingredients; press down firmly.
6. Bake 25-30 minutes or until lightly browned.
7. Cool COMPLETELY, chill if desired, and cut into bars.