Pork Tenderloin with Roasted Grapes and Mashed Sweet Potatoes

Name: Pork Tenderloin with Roasted Grapes and Mashed Sweet Potatoes
Ingredients: 4 strips bacon, cut into lardons; 3 tablespoons fennel seeds; 2 small pork filet mignon, about 10 ounceseach; Kosher saltand freshly ground pepper; 1 tablespoonextra-virginolive oil; 1 shallot, minced; 1/2 cup port wine; 2 cups seedless red grapes; 1 1/2 cups chicken stock; 3 tablespoons chopped fresh chives, for garnish; 4 sweet potatoes, peeled and cut into large dice; 2 tablespoons heavy cream, warmed; 4 tablespoons unsalted butter, cubed; Pinch of cayenne pepper; Pinch of ground cumin; 1 tablespoon light-brown sugar; Kosher salt