Heat cast iron skillet for five minutes and then add bacon grease.
Add sliced sausage into skillet and pan fry until slightly browned on each side, about 5 minutes.
Whisk together eggs, cream, salt and pepper and pour into skillet over sausage. Let sit one minute and then gently use a fork or wooden spatula to scramble.
Scramble until softly set (a bit liquidy) and then turn off flame. Add crumbled feta and mix through.
Dot with cream cheese and chives and let sit 30 seconds. Mix though and serve.
Any type of sausage can be used. I used grass feed beef sausage with jalapeno peppers.If you want a little kick, add jalapeno or other peppers into the skillet when you add the sausage.The residual heat from the cast iron skillet will continue to cook the eggs, once the flame has been turned off.