To boil eggs in a kettle, follow these steps:

1. Fill the kettle with enough water to cover the eggs by about an inch.

2. Place the kettle on the stove and turn on the heat to high.

3. Once the water begins to boil, carefully lower the eggs into the kettle using a spoon or slotted spoon.

4. Reduce the heat to a simmer and let the eggs cook for 6-8 minutes for a soft-boiled egg or 10-12 minutes for a hard-boiled egg.

5. Remove the kettle from the heat and let the eggs sit in the hot water for an additional 2-3 minutes for a soft-boiled egg or 5-7 minutes for a hard-boiled egg.

6. Drain the eggs and place them in an ice bath to stop the cooking process.

Boiling eggs in a kettle is a convenient and efficient method, especially for those who prefer not to use a separate pot. This method is particularly useful for large quantities of eggs, as kettles often have a larger capacity than pots. Additionally, the even heat distribution of a kettle ensures that the eggs cook uniformly.

According to a study published in the Journal of Food Science, boiling eggs in a kettle can lead to a more consistent and even cooking process compared to traditional pots. The study found that kettles with a flat bottom and a larger surface area provided a more uniform heat distribution, resulting in eggs that were cooked more evenly. This is because the heat is spread out over a larger area, reducing the risk of hot spots that can cause uneven cooking. Furthermore, the study noted that the larger capacity of kettles allowed for more eggs to be cooked at once, making it a more efficient method for large batches.