Step 1: Preheat your waffle maker to medium-high heat. Lightly brush the waffle plates with a thin layer of sesame oil.
Step 2: In a medium bowl, combine the cooked rice, 2 tablespoons of sesame oil, soy sauce, rice vinegar (if using), garlic powder (if using), and white pepper (if using). Mix thoroughly until all ingredients are well incorporated and the rice is evenly coated.
Step 3: Take about 1/4 to 1/3 cup of the seasoned rice mixture and gently press it into a compact ball or patty. The exact amount will depend on the size of your waffle maker compartments.
Step 4: Carefully place the rice patty into the center of each waffle maker section. Close the lid and cook for 4-7 minutes, or until the rice is deeply golden brown and very crispy. Cooking time will vary based on your waffle maker and desired crispiness. Do not open too early, or the rice may stick.
Step 5: Once cooked, carefully remove the Waffle Maker Crispy Rice Toppers using tongs or a non-scratch utensil. Place them on a wire rack to prevent them from getting soggy.
Step 6: Repeat with the remaining rice mixture. If desired, sprinkle with toasted sesame seeds or crumbled nori strips immediately after removing from the waffle maker.
Step 7: Serve the Waffle Maker Crispy Rice Toppers warm as a snack, side dish, or as a base for your favorite toppings. Enjoy!