Products: 1 pack of biscuit bites of harmonica 300 ml sour cream 1 jar of pumpkin preserve 50 g of walnutsArrange biscuits and sour cream in layers in the cups. If you prefer sweeter taste, add some pumpkin preserve in the middle. Over the top layer, add a spoonful of pumpkin preserve and garnish with walnuts. Leave the dessert in the fridge for at least an hour before serving.