Bring water to a boil in a saucepan and add the 2 eggs.

Boil the eggs for 8 minutes, then transfer them to a bowl of ice water.

Peel the cooled eggs and cut each egg in half lengthwise.

Toast the 2 slices of bread until crisp.

Mash the avocado with salt and black pepper, then spread it over the toasted bread.

Heat a frying pan over medium-high heat and add 1 tablespoon of feta cheese for each egg half.

Place the egg halves cut-side down onto the feta and cook until the feta turns golden and crisp.

Remove the pan from the heat and let the feta cool until it solidifies.

Place the crispy feta egg halves on the avocado toast and serve immediately.