- 1 1/2 cups pure maple syrup
- 3 tablespoons unsweetened cocoa powder, or to taste
- 1/2 stick (1/4 cup) unsalted butter, cut into pieces
- In a small heavy saucepan heat maple syrup over moderate heat until hot. Whisk in cocoa powder, butter, and a pinch of salt and simmer, whisking, 1 minute.
- Serve syrup warm. The syrup keeps, covered and chilled, 1 week.