Spanish Spinach with Chickpeas

Name: Spanish Spinach with Chickpeas
Cuisine: European, Mediterranean, Spanish
Ingredients: 400g (14 oz) canned chickpeas, drained and rinsed (or pre-cooked if using dried); 300g (10 oz) fresh spinach, washed and roughly chopped; 3 tbsp olive oil; 1 slice of crusty bread, cut into cubes; 3 cloves garlic, sliced; 1 tsp sweet paprika (pimentón dulce); 1/4 tsp ground cumin; 1/4 tsp smoked paprika; 2 tbsp red wine vinegar; Salt and black pepper to taste; Optional a pinch of red chili flakes for mild heat