In a medium saucepan, bring the vegetable broth to a boil
In a separate bowl, whisk together milk and flour until all lumps are dissolved
Add mushrooms and spices to the vegetable broth and stir to combine.
Add the milk/flour mixture to the broth, whisking to combine.
Reduce heat to medium, and continue to cook until thickened (3-5 minutes) stirring constantly.
Remove from heat.
Use immediately or store in airtight container in refrigerator.