Step 1

To a small saucepan, add wine, shallots, thyme and bay leaf. Bring to a boil over medium heat and cook until the mixture reduces by half, about 10 minutes.

Step 2

Add the broth and bring to a boil again. Continue cooking until this mixture reduces by half, 15-20 minutes.

Step 3

Strain the mixture through a fine mesh strainer and discard the solids. Return the strained sauce to the saucepan and heat over medium-low heat.

Step 4

In a small bowl, combine the melted butter and flour until smooth. Add this mixture to the saucepan and whisk until thickened. Enjoy immediately.