Slow-cooked chicken with a crisp corn crust

Name: Slow-cooked chicken with a crisp corn crust
Cook time: 1 h 45 min
Total time: 1 h 45 min
Ingredients: 3tbsp Olive oil; 3 red onions, thinly sliced, 500g; 2 garlic cloves, crushed; 2 TSP sweet smoked paprika; 200ml passata; 5 large tomatoes, 500g quartered; 200g jarred roasted red peppers; 15g dark chocolate; 20g fresh coriander, roughly chopped; Salt; Pepper; 70g unsalted butter; 500g corn kernels; 3tbsp whole milk; 3 eggs