01 - Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.
02 - Cut each acorn squash in half lengthwise. Remove and discard seeds and stringy pulp.
03 - Place squash halves cut side up on the lined baking sheet.
04 - In a small bowl, blend softened butter, brown sugar, cinnamon, nutmeg, and salt until smooth.
05 - Evenly distribute cinnamon butter on the exposed flesh and inside cavities of squash halves.
06 - Roast for 35-40 minutes until squash is tender and edges are caramelized.
07 - Optionally, drizzle with maple syrup and garnish with chopped nuts before serving warm.