A rich and indulgent side dish featuring tender butternut squash layered with a creamy Gruyere sauce, baked until golden and bubbly. This velvety gratin is perfect for holidays or cozy weeknight dinners.
For best results, grate your own cheese to avoid anti-caking agents. Use heavy cream for the best texture. Let the gratin rest for 10 minutes after baking to prevent a soupy consistency. If the top browns too quickly, cover loosely with foil.
Keywords: butternut squash gratin, creamy squash, holiday side dish, Gruyere cheese, vegetarian recipe, easy side dish, fall recipes