Chop onion, mix water into arrowroot starch and break apart sausage
begin cooking sausge on medium to high heat. Brown each side don't cook through. If fat isn't rendering add in olive oil.
Toss in onion after sausage has browned
Pour in bone broth, reduce to simmer then pour in heavy cream
Add in salt and pepper
Continue cooking until sausage is done and onions have softened. Turn off heat.
Make sure gravy isn't boiling over and pour in arrowroot water mix
Mix around then sprinkle xanthan gum across the top. Continue mixing until sauce is thick. Sauce should thicken pretty quickly but give it 30 seconds to 1 minute before adding anything else in.