Bring fruit juice and 1 sachet of vanilla sugar to the boil. Stir the sauce powder with 3 tbsp. water until smooth and bind the fruit juice with it. Add undefrosted berries and 2-3 tbsp. sugar and bring to the boil again. Divide the compote into six dessert glasses.
Let it cool down.
Roast the muesli mixture in a pan without fat until golden brown. Take out, let it cool down. Mix with honey. Mix sour cream, yoghurt, 2 tablespoons sugar and 1 packet vanilla sugar. Spread the sour cream over the berry compote.
Sprinkle with honey muesli.