Today is National Peanut Butter Day. Nut butters in general are excellent sources of protein and brain-friendly fats. I usually take a few Justin’s packets with me on flights just in case I’m delayed in an airport or on the tarmac. I’ve also created a nutritious and delicious toast topping that I keep in the refrigerator at all times. I make it in small batches, storing it in a plastic, half-cup-sized container so that it stays fresh and in it’s…..