Ingredients

4 tablespoons unsalted butter 

1/4 cup all-purpose flour 

2 cups milk 

1 cup heavy cream 

2 sprigs fresh sage 

1/4 cup chopped walnuts 

1 teaspoon coarse salt 

1/4 teaspoon freshly ground pepper 

Pinch of ground nutmeg 

Preparation

Heat the butter in a large saucepan over medium heat. When bubbling, add the flour. Cook, stirring constantly with a wire whisk, for 1 minute. While whisking, slowly pour in the milk. Continue cooking, whisking constantly, until the mixture bubbles and becomes thick.

Remove pan from heat; stir in cream, sage, walnuts, salt, pepper, and nutmeg. Cover; set aside to infuse for 30 minutes.