5 squares (from 10.5 oz.-bar) OREO Big Crunch Chocolate Candy Bar, divided
Directions
SPRAY 2 (8-oz.) microwaveable mugs with cooking spray.
WHISK first 3 ingredients in medium bowl until blended. Add baking mix and sugar; mix well.
RESERVE 1 Tbsp. cookie crumbs for later use. Stir remaining cookie crumbs into cake batter.
CUT 1 chocolate square diagonally in half; reserve for later use. Coarsely chop remaining chocolate squares; stir into batter. Spoon into prepared mugs.
MICROWAVE on HIGH 1 min. 15 sec. Remove from microwave. Let stand 1 min.
TOP with reserved cookie crumbs and chocolate pieces.