Yoghurt with red berry coulis

Name: Yoghurt with red berry coulis
Prep time: 10 min
Cook time: 13 h 20 min
Total time: 13 h 30 min
Cuisine: European, British
Ingredients: 200 g fresh mixed red berries, cut into pieces if large; 40 g caster sugar; 55 g natural yoghurt (see Tips); 1000 g full cream milk (see Tips); 50 g full cream milk powder (see Tips); 250 g water; 30 g lemon juice (see Tips)