To use whole cashew, you can enjoy them in a few simple steps. First, eat them as a snack directly. Alternatively, you can roast them for enhanced flavor by spreading them on a baking sheet and baking at 350°F (175°C) for 8-10 minutes. You can also use them in cooking and baking recipes like stir-fries, curries, salads, or desserts. Cashew butter can be made by blending roasted cashews until smooth. Remember to store them in an airtight container in a cool, dry place to maintain freshness. Enjoy the delicious taste and nutritional benefits of whole cashew in various ways!