Brown Bread Ice Cream

Name: Brown Bread Ice Cream
Ingredients: 2-3 slices of brown bread (250g, 9 ounces); 3 tablespoons (45g) butter, salted or unsalted; 1/2 cup (100g) granulated sugar; 3/4 teaspoon ground cinnamon; 1/4 teaspoon salt; 1 cup (250ml) whole milk; 1 1/2 cups (375ml) heavy cream; 1/3 cup (65g) granulated sugar plus 1/3 cup (65g) brown sugar (dark or light), or 3/4 cup (170g) granulated sugar; pinch of salt; 8 ounces (225g) cream cheese, cubed, or sour cream (regular or lowfat of either); 5 large egg yolks; 1/2 teaspoon vanilla extract; Optional: 1 tablespoon whiskey