Gloss Broth

This is from Graham Kerr's latest book. It goes especially well with
steamed asparagus to give it a melted butter sheen (I had it last night).

Gloss Broth

1/2 cup vegetable stock
1 teaspoon balsamic vinegar
1/8 teaspoon turmeric
dash of salt
1 teaspoon Arrowroot starch or cornstarch dissolved
in 1 Tablespoon of stock (slurry)

Combine all except slurry in small saucepan and bring to a boil. Stir in
starch slurry and cook until thickened, less than 1 minute.