Brussel Sprouts au Gratin • Kroll's Korner

Ingredients

• 2 lbs. Brussels sprouts, trimmed and halved
• 1 1/2 Tbsp. olive oil
• 1 tsp. kosher salt
• 1 tsp. garlic powder
• 2 Tbsp. unsalted butter
• 2 Tbsp. all-purpose flour
• 2 cups heavy cream or half & half
• 1 Tbsp. fresh thyme, chopped
• 1/2 tsp. kosher salt
• 1/4 tsp. black pepper
• pinch of fresh nutmeg
• 2 oz. Gruyere cheese, shredded (about 3/4 cup)
• 2 oz. Parmesan cheese, shredded (about 3/4 cup)
• 3/4 cup Panko breadcrumbs
• 1/4 cup Gruyere cheese
• 1/4 cup Parmesan cheese
• pinch of salt
• pinch of chili flakes (optional)
• 3 Tbsp. unsalted butter, melted