Cayenne Cherry Chocolate Steak Sauce

1 flank steak, approx. 3-4 lbs
1/2 cup dark chocolate morsels
1/2 cup mayonnaise
1/4 cup dark beer
2 TBS anchovy paste
2 TBS tomato paste
1/4 cup A1 sauce
1/2 tsp dry mustard
1/4 cup honey
1/2 tsp onion powder
1/2 tsp garlic powder
1/2 tsp ground coriander
1/2 tsp cayenne pepper
1/2 tsp sea salt
1/2 tsp course black pepper
1/3 cup dried cherries, chopped fine

Directions:

1.  Heat grill.  Grease with non stick spray
2.  In double boiler add chocolate and melt on low heat.  Stir until completely melted.
3.  Add mayo.  Stir to combine. 
4.  Add beer.  Stir to combine.
5.  Add all other ingredients, except cherries.  Stir and heat for approx. 3-5 mins.  Sauce should be semi thick.
6.  Take 1/2 of the sauce and brush both sides of steak.  Grill for 4-5 mins. on both sides.
7.  Add chopped cherries to remaining sauce.  Serve with sliced meat.