Potatoes au Gratin (Dauphinoise)

Bahan-bahan (8 porsi)

• 1 1/2 cups cream (, full fat (Note 1))
• 2 g arlic cloves (, minced)
• 30 g / 2 tbsp unsalted butter (, melted)
• 1.25 kg / 2.5 lb starchy potatoes (, Russet, Sebago, Maris Piper (Note 2))
• 1 tsp salt
• 1/4 tsp pepper
• 2 1/2 cups gruyere cheese ((colby, cheddar, havarti or tasty), freshly grated yourself (Note 3))
• 2 tsp thyme leaves (, fresh (optional - but highly recommended))