Candied Orange Ice Cream with Chocolate Fudge Swirl

Name: Candied Orange Ice Cream with Chocolate Fudge Swirl
Ingredients: 1 1/2 cups whole milk; 1 1/2 cups heavy cream (divided); 1/2 cup candied orange syrup*; 5 large egg yolks; pinch fine sea salt; 1 tablespoon granulated sugar; 1/8 teaspoon guar gum (optional); 1/4 teaspoon orange extract (optional (use more or less to taste)); 1/2 cup granulated sugar; 1/2 cup heavy cream; 6 tablespoons Dutch process cocoa powder; 1/4 cup corn syrup; 2.5 oz dark chocolate (chopped); 2/3 cup chopped candied orange peel