Millet-stuffed cabbage rolls with mushroom sauce

Name: Millet-stuffed cabbage rolls with mushroom sauce
Prep time: 40 min
Cook time: 1 h 40 min
Total time: 1 h 40 min
Yield: 6 portions
Ingredients: 250 g millet; 1200 g water; 6 - 12 savoy cabbage leaves; 180 g brown onions; 2 garlic cloves; 200 g fresh mushrooms; 20 g unsalted butter; 1 - 1 ½ tsp salt; ½ - ¾ tsp ground black pepper; 30 g unsalted butter; 80 g pouring (whipping) cream; ½ - ¾ tsp salt; ¼ - ½ tsp ground black pepper