Don't have a heart attack when you read the ingredients. This makes a lot of gravy, which is amazing over biscuits for breakfast,especially if you drank tequila the night before.:) You can also freeze the gravy for future use.
For the gravy: Heat oil in a pot over medium heat. Add onion and chorizo and cook until sausage is browned. Add Worcestershire and flour, stirring well for 2 minutes. Add cream and half & half and cook for 15 minutes. Stir in thyme, serrano and green onion. Continue cooking until sauce coats the back of a woooden spoon. season to taste with salt.
For the pork: Season pork with salt and pepper. Grill over medium heat until internal temperature registers 160 degrees.