How to cook
Preheat the oven to 356°F (180 °C).
Prepare a cake form about 9 1/2″ (24 cm) in diameter with a ring.
In a bowl mix together the milk, sour cream, pre-beaten together eggs, olive oil and the spices.
Pour the liquid ingredients over the mixture and leave for about 30 min. to absorb well.
Place an oiled form with a ring in a tray covered with baking paper and pour all of the mixture in it, cover with the set aside parmesan and chorizo.
Cover with aluminum foil and bake at 392°F (200 °C) for about 30 min. Remove the foil and bake another 10-15 min. to a nice crisp.
Take the Strata out of the oven, leave in the form for 15-20 min. and then remove the ring.