The main ingredient in the sauce is crowberry juice. Crowberry juice is something most locals know and love. Crowberries are exceptionally high in antioxidants and maintain the majority of their antioxidants, while also increasing in sweetness when cooked. Crowberries are also a good source of vitamin C, folate and dietary fibre. Crowberry sauce is a low-calorie sauce and is perfect for topping on cakes, yoghurt, ice cream, dessert and much more.