Method
In a small bowl, mash the avocado with salt and pepper.
Slice a horizontal slit in the bread along the longest side, all the way to the back, trying not to cut all the way through. Stuff each piece of bread with a quarter of the mashed avocado.
In a shallow, rectangular container, whisk together the eggs, milk, and hot sauce.
Melt butter on a griddle over medium-low heat. Dip the sandwiches in the egg mixture for a few seconds on each side.
Cook the toast until golden brown, 2 to 3 minutes per side. Top with a poached or fried egg, or other avo-toast toppings you wish!
Recipe: Food52