Steps

1. Using a knife, score about 1cm from the edge of 1 slice of bread, cutting out the center.
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2. Slice 1 spring onion horizontally into 1cm thick rings.
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3. Cut 1 wiener lengthwise into 4 equal parts, then slice thinly.
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4. Lightly beat 1 egg.
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5. Combine the thinly sliced wiener and beaten egg, season with a pinch of salt and a pinch of pepper, and mix everything together.
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6. Heat oil in a frying pan over medium heat.
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7. Place the sliced spring onion rings in the frying pan and cook until browned on the bottom.
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8. Once browned on one side, flip the onion slices.
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9. Place the cut-out bread slice into the frying pan, positioning it so the onion rings sit in the center.
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10. Pour the prepared egg mixture over the onion rings in the center of the bread.
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11. Cover and steam-grill for 4 minutes over low heat.
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12. Place 1 slice of melting sliced cheese on top of the onion rings.
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13. Drizzle with ketchup.
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14. Place the cut-out bread slice on top and flip the entire thing over.
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15. Gently press down with a spatula or similar tool while grilling until browned.
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16. Turn off the heat once browned.
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17. If desired, cut into bite-sized pieces and serve on a plate. **Pro Tip!** Spring onions are delicious even when cut a bit thicker. If using regular onions, make sure they are thoroughly cooked before proceeding. **Pro Tip!** Cutting out the center of the bread allows the onion to sit nicely, resulting in a beautiful and tasty presentation. **Pro Tip!** Steaming the egg and wiener mixture together creates an omelet-like texture, making it very hearty.
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