Add drippings, broth, salt and pepper to a medium-sized sauce pan and bring to a boil.
Reduce heat and simmer for 20 minutes, stirring often.
Just before serving, add 1 teaspoon gelatin to cold water and let sit for one minute.
Add to gravy and mix until dissolved. Continue process using 1/2 tsp increments until gravy reaches desired thickness (it will thicken more as it cools to room temp).
Stir in butter/ghee/bacon drippings/coconut oil and allow to cool a little before serving.