Store › Mad River Blue | Von Trapp, VT Image 1 of 2 Image 2 of 2 Mad River Blue | Von Trapp, VT from $20.50 Yes, those von Trapps. Fudgy and creamy with notes of white pepper and dark chocolate. Raw cow, traditional rennet. Weight: Select Weight 1/2 lb 1 lb Add To Cart Added! Yes, those von Trapps. Fudgy and creamy with notes of white pepper and dark chocolate. Raw cow, traditional rennet.