12 eggs, at room temperature
1 x pkt red egg dye powder
6 cups warm water
1/3 cup white vinegar
Olive oil, to grease
Bring a large saucepan of salted water to the boil over medium heat. Add the eggs and cook, stirring gently with a wooden spoon, for 8 minutes (this will centre the egg yolks as they cook). Drain.
Place dye powder and 2 tbs of the warm water in a large glass bowl and stir until dye dissolves. Add vinegar and the remaining warm water and stir to combine. Add the hard-boiled eggs to the dye mixture and set aside for 3 minutes to soak. Use a slotted spoon to transfer the eggs to a plate and set aside for 40 minutes to dry.
Place a little oil on paper towel and wipe each egg until shiny.