Place peeled, hard-boiled eggs into a quart wide mouth mason jar (or use a half recipe for pint jars).
Place liquids (water/vinegar, etc) into a small saucepan and add sugar and salt. Gently heat until dissolved, then remove from heat.
Add spices and sliced veggies (onions/garlic/etc) directly into the jars.
Pour the hot brine over the eggs and spices, leaving as little headspace as possible (around ¼ inch).
Seal jars with lids and allow them to cool slightly before storing them in the refrigerator.
Allow the eggs to pickle for at least 24 hours before eating, preferably around 1-2 weeks for better flavors.
Pickled eggs should last 3-4 months in the refrigerator.
