Apple Glazed POrk Sirloin with Raisins

6T flour, divided
1/2 tsp. dry mustard
1/2 tsp. salt
1/4 tsp. pepper
4-5 lb. pork sirloin roast
4 apples, peeled, cored and sliced
4T butter
1/2 C raisins
2T firmly packed brown sugar
1 1/2 C apple juice
1 tsp. ground cinnamon
1 tsp. nutmeg
1 tsp. ginger
2-3 T maple syrup
Heat oven to 350 degrees F. Combine 4T flour, dry mustard, salt and pepper in a shallow bowl. Dredge pork in flour mixture until evenly coated; shake off excess. In a cast iron Dutch oven heat butter over medium heat, brown pork on all sides. Remove from heat. Place apples around roast and top with raisins. In a glass measuring cup add apple juice, maple syrup and seasonings, stir and pour on top of pork and apples. Cover Dutch over and bake for 1 1/2-2 hours.