Creamy Kielbasa and Potato soup

Name: Creamy Kielbasa and Potato soup
Ingredients: 1 Tbsp butter; 1 small onion, medium diced; 1 c unsalted chicken broth; 3 russet potatoes; peeled and sliced (1/4 inch thick); 7 oz hillshire turkey polska kielbasa, quarter inch sliced; 5 pepperoncini peppers, sliced ( center removed ); 1 Tbsp garlic powder; 1/2 Tbsp pepperoncini juice (from jar); 1 tsp dried terragon; 1/2 tsp white pepper; 1/2 tsp salt; 1/2 c light cream; 1 russet potato, peeled and julienned; · salt and pepper, to taste