1 1/4 cups heavy cream
3 bags Earl Grey tea
1 tablespoon unsalted butter
12-ounces good-quality semisweet chocolate, coarsely chopped
1 teaspoon pure vanilla extract
1 to 2 cups Dutch-process cocoa powder
The uncoated rolled truffles can be prepared up to 2 weeks in advance. Wrap them tightly in plastic wrap and freeze. When ready to use, allow them to warm at room temperature, still wrapped, for about 20 minutes. Then unwrap and roll in the desired coating.