Mom's Sweet Mustard Sauce

I made momma give me this recipe to make with our ham. Everyone always loves it. In fact I made a few batches and put it in cute glass jars to give out as neighbor Christmas gifts this last year. Enjoy!

Mom's Sweet Mustard Sauce

1 cup sugar

½ cup white vinegar

2 eggs

1 teaspoon flour

2 chicken bullion cubes dissolved in ½ cup water

½ cup mustard

¼ cup butter

Whisk all ingredients together in sauce pan over medium-high heat. Cook until thick.