01 - Preheat oven to 425°F and line a baking sheet with parchment paper
02 - In a large bowl, toss halved radishes with olive oil, garlic, thyme, salt, and pepper until evenly coated
03 - Spread radishes in a single layer on prepared baking sheet, cut side down for optimal caramelization
04 - Roast for 20 to 25 minutes, stirring once halfway through, until radishes are golden and tender
05 - Remove from oven, adjust seasoning if needed, and serve warm