Recipe from the book: Chocolate Chip Cheesecake Bars Take these festive bars to your next gathering - you can make them ahead of time and transport them easily. prep: 14 min. cook: 40 min. other: 4 hr. makes 1 dozen 1 cup all-purpose flour1/3 cup firmly packed light brown sugar1/4 cup butter, softened3 (8-oz.) packages cream cheese, softened3/4 cup granulated sugar3 large eggs1/3 cup sour cream1/2 tsp. vanilla extract1 (12-oz.) package semisweet chocolate mini morsels, divided (we tested with Nestle Toll House) 1. Beat first 3 ingredients at medium-low speed with an electric mixer until combined. Increase speed to medium, and beat until well blended and crumbly. Pat mixture into a lightly greased 13- x 9-inch pan.2. Bake at 350 degrees for 13 to 15 minutes or until lightly browned.3. Beat cream cheese at medium speed with electric mixer until creamy. Gradually add granulated sugar, beating until well bended. Add eggs, 1 at a time, beating at low speed just until blended after each addition. Add sour cream, vanilla, and 1 cup chocolate morsels, beating just until blended. Pour over baked crust. 4. Bake at 350 degrees for 25 minutes or until set. Cool in pan on a wire rack.5. Microwave remaining chocolate morsels in a 2-cup glass measuring cup on HIGH 1 minute, stirring after 30 seconds. Stir until smooth. Transfer to a 1-qt. zip top plastic freezer bag; cut a tiny hole in 1 corner of bag. Pipe melted chocolate over cheesecake by gently squeezing bag. Cover and chill at least 4 hours; cut into bars.