Risotto con palmito y jamón ahumado

Ingredients - Risotto with Hearts of Palm and Smoked Ham 300g Carnaroli rice 1 small onion Salt, pepper 30ml Copalsa olive oil 30g butter 100ml white wine Stock (as needed) 150g hearts of palm Grated Sardinian cheese (to taste) Chopped parsley (as needed) 1 bay leaf 100g smoked ham A splash of cream