01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss the carrots with olive oil, salt, pepper, and cumin (if using) until evenly coated.
03 - Arrange the carrots in a single layer on the prepared baking sheet. Roast for 25–30 minutes, turning once halfway, until tender and caramelized.
04 - While the carrots are roasting, toast the pistachios in a dry skillet over medium heat for 2–3 minutes until fragrant; set aside.
05 - Remove the carrots from the oven. Drizzle with honey while still hot and toss gently to coat.
06 - Transfer to a serving dish. Sprinkle with toasted pistachios and fresh parsley, if desired. Serve warm.