This recipe is for a healthy chiffon-style mug cake that can be made in just 2.5 minutes in the microwave, using plenty of soy milk, kinako (roasted soybean flour), and okara powder. Simply mix the dry ingredients into the egg mixture and heat in the microwave to create a fluffy, smooth batter. With the addition of maple syrup for a gentle sweetness, and techniques such as emulsifying the oil and sifting the dry ingredients, this recipe is packed with tips for a delicious and foolproof result. It's especially recommended for kinako lovers and those on a diet, as it's an easy and enjoyable snack.