Fileno al Mirtilio (Blueberry Steak Sauce)based on original dish from Acqua al Due in Florence from Sara @tastebook.com
3 tbsp. butter or margarine
2 small shallots (or 1 medium), finely chopped
2 tbsp. flour
¼ c. sherry vinegar
¼ c. ketchup
3 tbsp. dijon mustard
¼ c. orange juice
¼ c. molasses
½ tsp. dried thyme
2 c. fresh or frozen blueberries
¼ tsp. dried sage, crumbled
salt and ground pepper to taste
Melt butter in large skillet over medium heat. Add shallots and saute 3-4 minutes, until shallots are translucent, but not browned. Sprinkle in flour, stir to blend and cook, stirring constantly until the mixture begins to bubble.
Add - vinegar, ketchup, mustard, orange juice, molasses, thyme and sage and stir to combine. Add blueberries and stir to combine. Increasing head to medium-high, bring to a boil. Reduce to a simmer and cook, stirring often for about 15 minutes until the mixture is thickened and glossy.
Season with salt and pepper to taste. Cool then transfer the mixture to a food processor or blender and puree for 30-40 seconds until very smooth.
Grill filet fignon to your taste and pour blueberry steak sauce over steak.