01 - Place the sliced carrots in a large saucepan and cover with water. Bring to a boil over medium-high heat. Reduce heat and simmer for 5–7 minutes, until carrots are just tender. Drain well.
02 - In the same pan, melt the butter over medium heat. Add brown sugar, salt, pepper, cinnamon (if using), and 2 tablespoons water. Stir until the sugar dissolves and the mixture is bubbling.
03 - Add the drained carrots back to the pan. Toss to coat evenly in the glaze. Cook for 3–5 minutes, stirring frequently, until carrots are glossy and heated through.
04 - Transfer to a serving dish and garnish with parsley, if desired. Serve warm.