Whisk yogurt, lemon juice, olive oil, and 1 tbsp water until smooth.
Stir in za’atar, garlic, sumac, salt, and pepper.
Pat peeled eggs dry, then add them and turn to coat evenly. Note: in this marinade the eggs don’t need to be fully submerged.
Cover and refrigerate overnight (8–12 hours).
Before serving, lightly remove excess yogurt and drizzle with olive oil + pinch of za’atar.
Note: if the yogurt thickens in the fridge, stir in a teaspoon of water before using the next day — it’ll revive the marinade’s texture without diluting the flavor.
These will last for 3-5 days in an airtight container in the fridge if they are medium-boiled eggs.
Hard-boiled eggs can last 5 – 7 eggs since the yolk will not spoil as quickly.