Orange Baked Chicken

how to prepare(cook)Orange Baked Chicken ?
Ingredients

4 boneless, skinless chicken breasts, halved
2 Tbsp butter, melted
1/2 tsp salt
Freshly ground pepper
3 Tbsp flour
1/4 tsp dry mustard
1/2 tsp cinnamon
1/8 tsp ground ginger
1&1/2 cups orange juice, boiling
Method
Preheat oven to 375 degrees.
Place chicken breasts in baking dish.
Brush with melted butter.
Sprinkle with salt and pepper. Bake 15 minutes, uncovered.
Put remaining butter in small saucepan.
Add flour, salt, mustard, cinnamon, and ginger.
Cook, stirring, 2 to 3 minutes.
Remove from heat and pour on boiling orange juice, beating vigorously with a wire whisk.
Cook, stirring, 5 minutes or until thickened.
Pour over chicken and bake another 15 minutes.
Set oven to broil and brown chicken for 2 to 3 minutes before serving.