Ring-Around-The-Tuna – Wealden Wonder-Muffins

Ingredients

• 1 x 3oz (85g) pack Jell-O, Lime or Lemon flavour
• ¼ teaspoon salt
• 1 cup (236ml) boiling water
• ¾ cup (177ml) cold water
• 2 tablespoons vinegar
• 2 teaspoons grated onion (or just whizz it in a food processor)
• ½ cup (75g) diced cucumber
• ½ (75g) cup diced celery
• 2 tablespoons chopped pimiento
• 1 x 145g can tuna, drained and flaked
• 2 tablespoons sliced, stuffed olives