Raisin Sauce

From Mom's notebooks. No notes on how to use, but I'd bet it would be good with poultry, beef, pork, lamb/mutton, or game. It almost looks like something out of one of my medieval cookbooks...

• Ready In: 1 hr
• Serves: 6

Ingredients

• 1  teaspoon mustard powder
• 1  tablespoon flour
• 1  tablespoon butter
• 1  cup water
• 1⁄2 cup brown sugar
• 1⁄2 cup cider vinegar
• 1⁄4 cup raisins

Directions

1. Whisk mustard and flour together.
2. Melt butter. Whisk in dry ingredients. Cook 1-2 min, until the raw taste is cooked out of the flour.
3. Add water, sugar and vinegar. Simmer 45 minutes.
4. Add raisins and simmer 10 minutes more.