Dutch brown bean soup a.k.a. bruine bonensoep

Ingredients

• 2 jars of brown beans (456 gram x 2 = 930 gram total)
• 2 onions
• 1/2 celery root
• 2 large leeks
• 1 large carrot
• 3 medium-sized floury potatoes
• 2 bay leaves
• 3 cloves
• 2 tablespoons tomato paste (not pictured)
• butter
• 1 smoked sausage
• 2,5 liter water
• pepper and salt to taste