John Kanell knows all too well that it’s not easy to prep dinner ahead of time — especially with two twin boys running around. As a result, the cooking and baking expert, who taught middle school math and science before following his passion, which led him to found Preppy Kitchen, decided to help others who might be in a similar predicament, going on to create Preppy Kitchen Super Easy: 100 Simple and Versatile Recipes, which releases on August 20. “I have twin boys who are 7 years old now, and although the toddler stage is hard, my life is getting so busy with clubs and sports now! There’s mo…