Grandma Benson's Boiled Salad Dressing

This was a staple in Grandma's kitchen.

3/4 c sugar
1 c vinegar
1 and 1/2 c water
2 tbsp flour
1 tbsp mustard
1 tsp salt
3 eggs, beaten

Combine ingredients and cook until thick in double-boiler over medium heat.
It will keep in the fridge for a month.
I use it in potato salad and cole slaw, and even on tossed salads.

Great for egg salad too.

I don't have a double boiler so just stirred slowly and constantly until the dressing thickened, but didn't boil. 

I find a complete recipe lasts a little longer than I prefer, so I've begun making a half-batch:

6 tbsp sugar

1/2 cup vinegar

3/4 cup water

1 tbsp flour

1 and 1/2 tsp mustard

1/2 tsp salt

2 eggs, beaten