To make a thin sauce for fresh fruit: In a medium bowl, combine creme fraiche, honey, vanilla extract, and vanilla seeds, and stir to combine; serve.
To make a thick sauce for cakes: In the bowl of an electric mixer fitted with the paddle attachment, combine creme fraiche, honey, vanilla extract, and vanilla seeds. Mix on high speed until mixture is the consistency of whipped cream, about 1 minute.
The simple recipe for making your own is under Homemade Creme Fraiche
Where is the very simple recipe for making the creme fraiche?