Delicious Ham soup

3 1/2 c. diced potatoes
1/3 c. diced celery
1/3 c. finely chopped onion
1 c. sliced carrots
3/4 c. diced cooked ham
1 1/2 c. water
1 can chicken broth
2 Tbls. chicken bouillon cubes
1/2 tsp. salt
1 tsp. pepper
1/2 tsp. thyme
1 1/2 tsp. sugar
5 Tbls. butter
5 Tbls. flour
2 c. milk
mashed potatoes for thickener

Combine first 12 ingredients, cook til potatoes are tender, about 20 minutes. In a saucepan melt butte,r add flour and cook 1 minutes more. Stir in milk and mashed potatoes. Cook and stir over medium heat until thickened. Add to vegetables and heat to desired temperature.