Cheesy Potato Au Gratin with Buttery Ritz Cracker Crumbs.

Bahan-bahan (8 porsi)

• 4 tablespoons butter
• 3 cloves garlic (mashed)
• 1/4 cup flour
• 3 cups heavy cream or whole milk
• 1 1/2 cup gruyere cheese (shredded)
• 4 ounces brie (rind removed + diced)
• 2 tablespoons fresh sage (chopped)
• 1/4 teaspoon cayenne pepper
• salt + pepper (to taste)
• 4 pounds russet potatoes (cut into 1/8-inch-thick slices)
• 1 1/2 cups Ritz crackers or other buttery crackers (crushed)
• 2 tablespoons butter (softened)