Heat the butter and olive oil in a frying pan over medium heat. Add the leek, onion and garlic and cook, stirring, for 5 minutes or until the leek and onion have softened. Transfer to a slow cooker/crock pot. Note: if you have a searing slow cooker, you can saute the leeks in it on the stovetop instead of using a frying pan.
Add the pumpkin and liquid chicken stock. Cook for 4 hours on HIGH or 8 hours on LOW (or until the pumpkin has softened).
Use a stick blender to blend until smooth. Add 150ml of the cream and stir through.
Serve the soup with fresh chopped chives and the remaining cream.
Notes
RECIPE NOTES & TIPS:
Be very careful when blending hot soup!
Store slow cooked pumpkin soup in the fridge for 3-4 days. Reheat well to serve.
Freeze pumpkin soup in an airtight container for up to 3 months. Thaw then reheat thoroughly before serving.
VARIATIONS & SERVING SUGGESTIONS:
Swap cream for evaporated milk for a low fat option.
Substitute the chicken stock for vegetable stock for a vegetarian option.
For a spiced option, add a little curry powder when sauteing the onion, garlic and leek.
Add a little chilli powder and swap half the cream for coconut cream for an asian twist.
You can substitute the chives for any other fresh herbs such as parsley, thyme, or coriander if you prefer.
Try a dollop of sour cream or greek yoghurt with the herb garnish instead of a drizzle of cream.
Crispy bacon pieces sprinkled on top always add an extra 'yum' flavour.
Croutons are another option to sprinkle over the top.
Freshly grated parmesan adds another taste dimenson as well
Serve your slow cooker pumpkin soup with bread to soak up all the flavour. Try soft fresh bread rolls, a crusty breadstick buttered well, or warmed foccacia, toasted ciabatta or Turkish bread!