Garden eggs stew with boiled green plantain

Name: Garden eggs stew with boiled green plantain
Ingredients: 1 whole dried and salted tilapia (koobi); 11 small white aubergines, trimmed and halved; 2 Scotch bonnet chillies; 2 Indian or small red onions, 1 chopped, 1 sliced; 4-6 green plantains, peeled, each cut into 2-3 pieces; 2 large eggs; 2-4 tbsp peanut butter; ½ shrimp cube (optional); ½ tsp aromat (optional); 30g fermented salted fish (momoni); 120ml red palm fruit & rapeseed oil (we used Carotino Mild & Light cooking oil, available in Morrisons and Tesco); 120g tin sardines in oil, drained; 1 avocado, stoned, halved, peeled and sliced