Ingredient

• 3 pounds Russet potatoes, peeled and cut into 2-inch pieces
• 1 1/2 sticks unsalted butter
• 4 sprigs fresh thyme
• 2 cloves garlic, peeled and crushed
• 1 1/2 cups heavy cream
• 1/2 cup milk
• 2 teaspoons sea salt
• Freshly ground white pepper

• Step 1

  Fill a large pot with about 2 inches water. Set steamer basket in pot (water should not come through the holes). Bring to a boil, and then reduce to a rapid simmer.

• Step 2

  Add potatoes to steamer basket and steam until tender when pierced with a knife, 25 to 30 minutes.

• Step 3

  Meanwhile, melt the butter in a medium saucepan over medium heat. Simmer, whisking occasionally, until the butter is deep golden brown, 5 to 10 minutes. Place the thyme and garlic in a fine mesh sieve lined with cheesecloth. Strain the butter over the garlic and thyme into a medium bowl, add cream, and whisk to combine.

• Step 4

  Remove potatoes from steamer basket. Drain, and immediately press through a medium mesh sieve into a large bowl using a rubber spatula. Fold the cream mixture into the potatoes. Press mixture through a fine mesh sieve. Season with salt and pepper and serve immediately.