Best Sweet Potato Gratin

delish.com

All You Can Nosh

3 tbsp. unsalted butter, softened, divided, plus more for foil

4 tsp. cloves garlic, chopped

2 tbsp. chopped fresh thyme leaves, plus more for serving

1 tbsp. chopped fresh sage leaves

Kosher salt

1 c. heavy cream

¾ c. whole milk

¼ tsp. ground cinnamon

¼ tsp. ground nutmeg

2 large eggs

¾ c. grated Parmesan (about 2 oz.), divided

Freshly ground black pepper

2 lb. sweet potatoes (mix of purple, orange, and white), peeled and sliced ⅛" thick

2 ⅔ c. shredded Gruyère cheese (about 8 ½ oz.), divided

Directions at delish.com

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