Andreas Hand Cranked Coffee Cavatelli

Name: Andrea's Hand Cranked Coffee Cavatelli
Ingredients: 8 ounces extra-virgin olive oil; 2 tablespoons sliced garlic; 8 ounces freshly sliced porcini mushrooms; 6 to 8 ounces diced and blanched calabaza; 1 pound cooked Espresso Cavatelli, recipe follows; 1 1/2 cups light chicken stock; 8 ounces butter; 6 to 8 ounces fontina cheese, grated; 1 orange, zested; 2 tablespoons fresh chopped chives; 16 leaves fresh arugula; Kosher salt and freshly ground black pepper; 16 1/2 ounces all-purpose flour, plus more for flouring work surface; Pinch kosher salt; 1 tablespoon instant espresso powder; 12 ounces ricotta cheese; 1 whole egg; 1 1/2 to 2 ounces milk