Start by thoroughly washing your radishes under cold water to remove any dirt. Trim the tops and tails off each radish, and for added tenderness, you can soak them in cold water for about 10 minutes.

While the radishes soak, preheat your oven to 400°F (200°C) for optimal cooking.

In a mixing bowl, melt your butter and then add the cleaned radishes. Toss them until evenly coated.

Spread the coated radishes in a single layer on a baking sheet, ensuring not to overcrowd them.

Roast the radishes in the preheated oven for 20-25 minutes, flipping halfway through.

Remove from the oven, sprinkle with sea salt and optional fresh herbs, and serve hot.