In large pot over medium heat melt butter add the onion and celery and cook stirring often until softened 3 to 5 minutes

Stir in flour and cook 2 minutes longer

Pour in the chicken broth increase the heat on high and bring to a boil stirring constantly

Reduce heat to medium and cook stirring often until slightly reduced and thickened about 15 minutes

Whisk the peanut butter and cream into the liquid warm over low heat whisking often for about 5 minutes or until hot. do not boil