To a large pot (over high heat), add water and bring it to a boil. Then, reduce the heat to low so the water is only gently simmering, and optionally, add 1 tablespoon of white wine vinegar. You can still poach the eggs without the vinegar! The vinegar simply helps set the egg whites faster. Swirl the water with a large spoon to create a small vortex. Crack an egg into a small bowl and gently add it to the center of the small vortex. Repeat with the other 3 eggs. You can cook all 4 at the same time in a large pot. Cook the eggs for about 3 minutes until the whites have set and are firm, but the yolks are still runny.