Meatballs with Romesco Sauce

Name: Meatballs with Romesco Sauce
Prep time: 20 min
Cook time: 1 h 40 min
Total time: 2 h
Cuisine: European, Italian, Mediterranean
Ingredients: 1 red pepper; 1 tomato; ½ red onion; 2 garlic cloves; 50 g blanched almonds; 50 g olive oil; 1 slice bread, day old; 1 Tbsp sherry; 1 Tbsp red wine vinegar; ¼ tsp smoked paprika; 2 tsp dried chilli flakes; 2 pinches fine sea salt; 2 pinches ground black pepper; 500 g beef topside; 250 g chorizo; 3 sprigs fresh flat-leaf parsley; ¼ tsp ground nutmeg; ¼ tsp fine sea salt; ¼ tsp ground black pepper; 1 large egg; 1 Tbsp olive oil