Combine soups (undiluted), chicken broth, carrots, celery and potatoes into very large cooking pot, which has a tight fitting lid. Stir to mix undiluted soup around. Cook over medium heat for 20 minutes. Add chicken and peas; then stir and put cover on pan; cook for another 15 minutes.
Meanwhile prepare biscuit dough:
- 2 cups Jiffy Buttermilk Biscuit Mix
- 2/3 cup milk (can be buttermilk, if desired)
Mix together biscuit mix and milk, stirring to absorb all dry mixture. Use a large soup spoon to shape dumpling mixture into a large oval. Drop the large spoonful onto top of hot stew. Work quickly until all the dumplings are in the pot in a single layer. Cover tightly and immediately reduce the heat to low. Do NOT open the lid for 15 minutes.
Serve immediately.