The Best Bread Pudding with Cream Cheese Frosting

Name: The Best Bread Pudding with Cream Cheese Frosting
Prep time: 25 min
Cook time: 1 h 15 min
Total time: 1 h 40 min
Cuisine: American
Ingredients: 1 loaf potato bread (cut into cubes, (more if you need it, the bread should mound high above your casserole dish.)); 3 cups whole milk; 3 large eggs; 1 ½ cups sugar; 2 tablespoons vanilla; ⅓ cup raisins (optional); 2 tablespoons butter (optional); ¼ cup heavy cream (optional); 4 ounces butter (softened); 8 ounces cream cheese (softened not whipped); 1 cup confectioners sugar (more if you like it sweeter); 2 teaspoons vanilla extract