How to Make It
In a small bowl, thoroughly blend the butter with the minced chipotles and adobo sauce and season with salt and pepper. Spread the chipotle butter on both cut sides of the baguettes. Arrange the tomato slices on the bottom halves of the baguettes.
Heat a griddle or a very large nonstick skillet. Add the olive oil and, when it’s hot, crack in the eggs. Cook over-easy over moderate heat, turning once halfway through cooking, about 1 1/2 minutes. Season the eggs with salt and pepper and top each one with a slice of the Gruyère cheese. Set 2 eggs on the tomatoes on each baguette bottom and top with the sliced avocado and ham. Close the sandwiches and serve right away.