Pressure Cooker Lentil and Kale Soup

Ingredients

• • 1 leek, thinly sliced
  • 3 garlic cloves, chopped
  • 1 tbsp (15 ml) olive oil
  • 2 cups (300 g) sweet potatoes, peeled and cubed
  • 1 cup (200 g) dried green lentils, rinsed and drained
  • 4 oz (115 g) kale leaves, stems removed, chopped
  • 5 cups (1.25 litres) vegetable broth
  • 1 can (14 oz/398 ml) diced tomatoes
  • 2 tbsp (30 ml) red wine vinegar