In a saucepan, whisk together the milk, chicken broth and cornstarch until smooth.
Stir in the salt, black pepper and poultry seasoning.
Cook over medium heat, stirring constantly, until bubbling (3–5 minutes).
Reduce heat to medium-low and continue stirring until very thick (about 5 minutes).
Remove from heat and use as needed.
Notes
Can be stored in the refrigerate for up to a week in a mason jar or any air tight container. This recipe makes approximately 1 cup of condensed cream of chicken soup.