Swedish meatballs and mash

Meatballs

• 30 g Parmesan cheese, cut into pieces (3 cm)
• 2 - 3 sprigs fresh dill, leaves only
• 2 garlic cloves
• 2 slices bread (approx. 60 g), torn into pieces
• 60 g brown onion, cut into quarters
• ¼ tsp ground allspice
• ¼ tsp ground nutmeg
• ⅛ tsp ground black pepper
• ½ tsp sea salt, plus extra to season
• 1 egg
• 500 g lean beef mince, broken into pieces
• 70 g salted butter, cut into pieces
• 30 g plain flour
• 400 g water
• 3 tsp Meat stock paste, to taste (see Tips)
• 2 tsp Worcestershire sauce
• 1 tsp Dijon mustard
• 800 g floury potatoes, red and blue varieties, cut into pieces (1 cm)
• 100 g pouring (whipping) cream
• 150 g broccolini, trimmed and cut in half lengthways
• 200 g carrots, cut into slices
• 1 - 2 tbsp milk
• ¼ tsp ground nutmeg (optional)
• lingonberry jam or cranberry sauce, to serve (see Tips)