2 large carrots, scrubbed, cut into 2-in (5 cm) pieces
2 stalks celery, scrubbed, cut into 2-in (5 cm) pieces
2 medium onions, quartered
1 head garlic, top cut off
1 cup (250 ml) white wine
1 cup (250 ml) mayonnaise
½ cup (125 ml) grainy mustard
3 tbsp (45 ml) sea salt, divided
2 tbsp (30 ml) pepper, divided
4 garlic cloves, roughly chopped
1 tbsp (15 ml) each, chopped rosemary, sage and thyme
1 tbsp (15 ml) honey
1 tsp (5 ml) apple cider vinegar
5 lbs (2.27 kg) boneless pork shoulder roast (ask butcher to tie it)
2 cups (500 ml) chicken stock
3 tbsp (45 ml) all-purpose flour
3 tbsp (45 ml) water
3 tbsp (45 ml) butter