Directions

1. Unfold 1 puff pastry sheet onto a lightly floured surface. With a sharp knife, cut along the 2 line folds to create 3 strips. Cut each strip into 4 equal squares. Repeat the process with remaining puff pastry sheet. Place squares on a parchment paper-lined baking sheet and refrigerate while preparing the filling.
2. Melt butter in a large skillet with high sides over medium heat. Add mushrooms, shallot, garlic, salt, and pepper. Saute until mushrooms are browned and tender, about 8 minutes. Add sherry and simmer 2 minutes to cook off alcohol.
3. While mushrooms cook, in a bowl, whisk together chicken broth, milk, and flour. Pour broth mixture into the mushrooms, add herbs, and stir to blend. Bring to a simmer and cook, stirring frequently, until thickened, 2 to 3 minutes.