01 - Preheat the oven to 400°F. In a large bowl, toss Brussels sprouts with olive oil, salt, and black pepper until well coated.
02 - Arrange the Brussels sprouts in a single layer on a baking sheet. Roast in the oven for 20 to 25 minutes, shaking the pan halfway, until sprouts are crispy and golden brown.
03 - While sprouts roast, combine apple cider and maple syrup in a small saucepan. Bring to a simmer over medium heat and cook for about 10 minutes, stirring occasionally, until liquid is thickened and syrupy.
04 - Transfer the roasted sprouts to a serving dish. Drizzle with the apple cider glaze and sprinkle toasted pecans over the top before serving.