My dad demands this for Sunday dinner every single spring. Amazing for only 3 ingredients.

For a slightly smokier profile, use a smoked fully cooked ham and a dark cola like a traditional cola or a cherry cola; the caramel notes deepen as it bakes. If you prefer a bit of spice with the sweetness, you can rub a teaspoon or two of ground mustard or black pepper directly onto the ham before adding the first layer of brown sugar—this keeps the ingredient list short while nudging the flavor in a more savory direction. To keep things strictly three-ingredient but adjust sweetness, swap half the brown sugar for turbinado sugar, which adds a subtle crunch to the crust. If your ham is on the smaller side (5–7 pounds), reduce the cola to 3/4 cup and the brown sugar to about 1 1/2 cups, and start checking for doneness earlier. Leftovers freeze well: slice, wrap tightly, and freeze in smaller portions for quick sandwiches, omelets, or to stir into beans and greens on busy weeknights.