Bake until the pudding jiggles as a unit when gently shaken and a dinner knife inserted about 1 inch from the center comes out clean, about 45 minutes. Remove from the oven and let cool for about 10 minutes and serve warm. Or, cool completely, cover with plastic wrap refrigerate until cold, at least 2 hours. Serve chilled, with a drizzle of heavy cream on top, if desired.