1x Pouch of Hammons Hand-Harvested Wild Black Walnuts (12 oz). Nut Type 100% Wild Black Walnuts. The Nutty Flavor-Unlock Secret: Want to intensify the natural, earthy oils of your wild walnuts?. Spread the large pieces evenly across a dry baking sheet and toast them in your oven at 350°F (175°C) for just5 to 7 minutes until slightly fragrant.