Energy bars are all the rage these days. Delivering quick energy and nutrition when you're on the go, it's no wonder why they are so popular. The only problem is a single bar can cost anywhere from $1 to $5, making it a pricey snack. Luckily, energy bars are easy to make at home for a fraction of the price, and are infinitely customizable. For this grain-free bar, nuts and nut butter deliver a high dose of protein, giving you a burst of energy and helping to curb hunger. Dates add natural sweetness and give the bar a nice chewy texture. The taste and texture are similar to a peanut butter cookie, so your healthy snack will feel like a treatAn added bonus is that this recipe freezes great Especially if you individually wrap the bars and stash them in a big zip-top bag. Just stick one or two in the fridge the night before and they'll be defrosted for the next day. If you're doubling the recipe, use a bigger pan or two 8-or 9-inch pans. See the variations note below the recipe for ideas on how to customize your energy bars.