Monster Oatmeal Chocolate Chip Cookie Bars Sunday, June 14, 2020 JUMP TO RECIPE (CLICK HERE) These one bowl homemade oatmeal cookie bars with chocolate chips and Reese's Pieces are the perfect way to use up any leftover Halloween candy. They're super easy, festive for both Halloween and…More Share this post Related Posts20 Easy Cookie Bar Recipes for School LunchesCoconut Oil and Cocoa Brownie RecipeSoft Batch Christmas Sprinkle CookiesKeto Peanut Butter Cup Fat BombsRoyal IcingKeto Chocolate Fat BombsGrandma's Waffle CookiesMaple Pecan Oatmeal Raisin Cookies