This recipe offers a bit of flexibility for personal taste, is easy to prepare and best when chilled overnight. Prepare as a gluten-free recipe by using gluten-free rolled oats. Recipe tips Add extra flavor by roasting the oats in a 400 degree oven for 5-6 minutes. Roast nuts until desired crunch, based on the nut used. These bars will keep in the freezer or refrigerator for several weeks. Pre-cut and package to have a healthy snack in a pinch.