Butter the English muffin halves and place them on a baking sheet, cut side up.
4 tablespoons unsalted butter, 4 English muffins
Add the Canadian bacon to the same baking sheet.
8 slices Canadian bacon
Place the sheet under the broiler for 3-4 minutes until the English muffins are toasted and the Canadian bacon is crisped on the edges.
In a large saucepan, bring water to a boil.
Crack the eggs into small bowls or ramekins.
8 large eggs
Reduce the heat so the water is barely simmering with just a few tiny bubbles at the bottom of the pan.
Add 1 tablespoon of vinegar to the water.
1 tablespoon white vinegar
Bring the ramekins close to the water and gently drop in the eggs, 2-4 at a time.
Cover the pan, letting the eggs poach for about 4 minutes.
Use a slotted spoon to transfer the eggs to a plate lined with paper towel. Set aside.