Cook the rice. Be sure to rinse your rice thoroughly, then transfer to a rice cooker, cover and cook according to manufacturer directions. Prepare the teriyaki spam musubi sauce. Simply whisk together dark brown sugar, soy sauce, mirin, and sesame oil, then microwave for about a minute until the sugar dissolves. Pan-fry the spam. Spam renders as it quickly cooks in a skillet, creating added depth of flavor and an irresistible crispy golden-brown crust. Prepare the nori. Cover your work surface with a large piece of plastic wrap or wax paper then grab a sheet of sushi nori. Build the spam musubi in the musubi mold. Add a layer of rice. The most important thing here is to gently handle the rice so it stays nice and light! Tip! ⇢ Try not to compact the rice as you are scooping or packing it. Instead, fill the mold almost entirely with rice and pat it lightly to ensure it is level.
Sprinkle a generous amount of furikake. Don’t be shy here! A few tablespoons of seasoning on top of the rice adds a ton of flavor and texture to the musubi.
Top with the teriyaki spam. Place the slices of pan-fried spam right on top and you’re done!
Remove the mold. The easiest way to remove the spam musubi mold is to apply a bit of pressure first.
Wrap the spam musubi. The sushi nori is already well-positioned to wrap around the spam musubi.
Repeat, slice, and serve! Your first 2 spam musubi are ready, so now you just have to repeat the process a few more times. Once wrapped, slice each spam musubi in half crosswise, right between the pieces of spam.