Baked Asparagus with Balsamic Butter Sauce

1 bunch fresh asparagus
cooking spray
salt and pepper to taste
2 Tbsp. butter
1/2 Tbsp. soy sauce
1-2 tsp. Balsamic Vinegar

Preheat oven to 400 degrees. Snap ends off of washed asparagus and place on baking sheet. Coat with cooking spray and season with salt and pepper. Bake for 12 minutes or until tender. Melt the butter and stir in soy sauce and Balsamic vinegar. Pour over asparagus and serve.
This recipe is from http://sowethinkwecancook.com