Ingredients

6 tablespoons butter
6 garlic cloves, peeled
2 tablespoon finely chopped fresh ginger
1 1/2 cups heavy cream
4 medium yams or sweet potatoes, peeled and roughly chopped
Salt and freshly ground black pepper

Directions

1. Heat a small saucepan over medium heat. Add 1 tablespoon of the butter and swirl to coat the bottom of the pan. Add the garlic and ginger and sauté, stirring occasionally until the garlic is brown, 3 to 4 minutes. Add the cream and reduce by one-third over low heat, about 10 minutes. Keep warm.

2 Meanwhile, combine the yams in a large saucepan with enough water to cover them completely. Bring to the boil over high heat and cook until the yams can be pierced easily with the tip of a knife, 20 to 30 minutes. Drain and transfer to a food processor. Add the cream and process until well blended. Add the remaining butter, season with salt and pepper, and puree until smooth. Transfer the potatoes to a bowl, correct the seasonings, and serve.