While the eggs are boiling, slice the jalapeno's and onion. Place in pot with water,vinegar,salt and garlic. Set aside.
After the eggs are boiled place in colander run cold water over them until cool enough to peel. Peel the eggs. I slice the egg in four places about a half an inch long. Place enough eggs in jar to cover the bottom.(about 4or5)
Bring the pot that you set aside to a boil. Boil for about five minutes. Turn off heat. I like to layer the eggs and onions,jalapeno's. So with a slotted spoon, spoon out some onions and jalapeno's place on the eggs in the bottom of the jar. Add another layer of eggs then onions and jalapenos until eggs and onions and jalapeno's are gone. Place the jar in the sink pour the water, vinegar in the jar leaving about 1/2 inch of head space. Screw lid on tight, let cool then refrigerate. Let sit for about 4 or 5 days. Enjoy!