Mustard Pickled Eggs

Ingredients:

• 12 eggs
• 1 medium onion, sliced
• 4 cups water
• 1 cup white vinegar
• 1 cup sugar
• 1 tablespoon kosher salt
• 1 tablespoon mustard seeds
• 3 tablespoons yellow mustard or 1 1/2 tablespoons mustard powder
• 2 teaspoons turmeric

Instructions: