Creamed Mashed Potatoes with Spinach

* From Epicurious.com

Ingredients:
1 lb boiling potatoes, peeled and cut into quarters
1/4 cup heavy cream
1 1/2 tablespoons unsalted butter
1/2 teaspoon salt
1/2 teaspoon black pepper
2 oz baby spinach (3 cups)

Instructions:
1. Cover potatoes with salted cold water by 1 inch in a large saucepan and simmer, uncovered, until tender, 20 to 30 minutes.
2. While potatoes are simmering, bring cream, butter, salt, and pepper to a simmer in a small saucepan. Remove from heat and keep warm, covered.
3. Drain potatoes in a colander and cool slightly. Peel potatoes and mash in large saucepan.
4. Stir spinach into warm cream, tossing to coat, and when slightly wilted (after about 1 minute), immediately add to potatoes. Mash potatoes until almost smooth. Serve immediately.