Moser Roth, Dark, 85% cocoa.
Per 100g: 608kcal, fat/sat 51/31g, carbs/sugar 18/14g, fibre 15g, protein 11g, salt 0.38g
Per bar 25g, 152kcal, fat/sat 13/7.7g, carbs/sugar 4.6/3.5g, fibre 3.7g, protein 2.9g, salt 0.09g
I think you can buy it from Lidl.