Toast the bread: Toast your bread until it’s deeply golden and crisp. A sturdy base keeps the avocado from making it soggy.
Prep the avocado: Cut the avocado in half, remove the pit, and scoop the flesh into a bowl.
Mash with a fork until mostly smooth, leaving a few chunks for texture. Season with a pinch of salt, pepper, and a squeeze of lemon or lime if you like.
Cook the egg your way: Fried (sunny-side up): Heat olive oil or butter in a nonstick pan over medium heat. Crack in the egg, season, cover, and cook 2–3 minutes until whites are set and yolk is runny.
Over-easy or over-medium: Flip gently and cook 15–45 seconds more, depending on your preferred yolk.
Jammy soft-boiled: Boil for 6½–7 minutes, then chill in cold water and peel.
Poached: Simmer water with a splash of vinegar, swirl, slip in the egg, and cook 3–4 minutes.
Scrambled: Whisk with a pinch of salt and cook low and slow for soft, creamy curds.
Assemble: Spread the mashed avocado generously over the toast.
Top with the egg. Add a final pinch of salt, a crack of pepper, and your favorite toppings like red pepper flakes or everything seasoning.
Serve immediately: Eat while the toast is crisp and the egg is warm.