1. Start by bringing a medium-sized pot of water to a gentle simmer over medium heat. Add a splash of vinegar to help the eggs hold their shape.
2. While the water is heating, cut the avocados in half, remove the pits, and scoop the flesh into a bowl. Add the lemon juice, and mash with a fork until smooth. Season with salt and pepper to taste.
3. Toast the slices of bread to your desired level of crispiness.
4. Crack each egg into a small bowl, then gently slide the eggs into the simmering water one at a time. Poach for about 3-4 minutes, or until the whites are set but the yolks are still runny.
5. Spread a generous amount of the mashed avocado onto each slice of toast. Using a slotted spoon, carefully lift each poached egg out of the water, allowing excess water to drain off.
6. Place one poached egg on top of each slice of avocado toast.
7. Sprinkle with red pepper flakes and fresh chives, if using, for added flavor and a little bit of color.

And there you have it—a meal that’s as delightful to look at as it is to eat! Remember, the key to poaching eggs is patience and practice. Don’t worry if it takes a few tries to get them just right.