Wild rice is the only grain native to North America, though it's actually not a rice at all but the seed from an aquatic grass. After cooking, wild rice still has a distinct crunch which makes it an excellent mix-in with more traditional whole grains, such as brown rice.How to: Place 2 1/3 cups water and 1 1/4 cups uncooked wild rice (1 [8-ounce] package) in pressure cooker. Close lid securely; bring to high pressure over high heat. Adjust heat to medium or level needed to maintain pressure; cook 30 minutes. Remove from heat; release pressure through steam vent, or place cooker under cold running water to release pressure. Remove lid; drain any excess liquid.