Ingredients:
- 12 hard-boiled eggs, unpeeled
- 6 drops blue food color
- 6 tbsp. mayonnaise
- 3 drops green food color
- 2 tsp. yellow mustard
- 2 tsp. white vinegar
- To taste salt
- Black sesame seeds
Directions:
- Mix water and blue food color in a large bowl.
- Crack the shells of the hard-boiled eggs gently with a spoon. Do not remove the shell.
- Put the cracked eggs in the water and food coloring mixture and refrigerate for at least 2 hours.
- Remove eggs from the refrigerator, peel carefully and cut eggs in half lengthwise. Scoop out the egg yolks and transfer to a bowl. Set the whites aside.
- Mash the yolks with the mayonnaise, green food coloring, mustard and vinegar, and pipe the yolk mixture into the egg whites. Garnish with black sesame seeds.
