Start by thoroughly washing and scrubbing your fresh radishes under cold water to remove any dirt. Trim off the tops and roots, then halve or quarter the radishes.

In a small saucepan, melt the unsalted butter until smooth and just begins to bubble. Let cool slightly.

In a mixing bowl, combine the radishes with the melted butter, flaky sea salt, and black pepper if desired. Toss until well-coated.

Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.

Place the seasoned radishes cut side down on the baking sheet in a single layer.

Roast for 20-25 minutes, flipping halfway through, until fork-tender and golden.

After roasting, sprinkle with additional flaky sea salt and fresh herbs or lemon zest if desired. Serve warm.