Grandma Lively'S Potato Salad
["1 1/2 tsp. mustard seed", "1 tsp. celery seed", "3 Tbsp. vinegar", "1 1/2 tsp. salt", "1/2 c. finely chopped green onion tops", "5 c. diced cooked potatoes", "2 hard-boiled eggs, chopped", "3/4 c. mayonnaise", "2 tsp. mustard"]
["Soak mustard seed and celery seed in vinegar overnight. Combine all ingredients.", "Mix well.", "Cover and refrigerate.", "May add extra mayonnaise prior to serving.", "Makes 6 servings."]
["celery", "vinegar", "salt", "green onion", "potatoes", "eggs", "mayonnaise", "mustard"]