Rustic French Onion Soup

Okay, YUMMMM. Aren't soups just the best? They're a firm favourite in our house and this sweet caramelised Rustic French Onion Soup with toasty sourdough bread and melty cheese on top is both cosy and delicious, and ready to keep you warm throughout the cooler months ahead. Made with just 5 basic pantry ingredients, plus flaky sea salt and cracked pepper for seasoning, this simple soup is sugar free and jam packed with a deeply rich, slightly sweet yet satisfying flavour that will want you coming back for more, and more, and most definitely more. My secret ingredient? A really good drop of white wine to deglaze and amaze. 


Rustic French Onion Soup Recipe Rustic French Onion Soup Recipe


There is something very special about taking the time to cook the onions in a French Onion Soup; the flavour and aroma of the slow-cooked caramelised onions is truly special. The best French Onion Soups are not rushed, and either is this one. But don't be fooled by the time it takes to caramelise the onions because it's actually very simple to do. All you need is a lot of onions, a generous knob of butter, and a wooden spoon to stir the onions around occasionally in a large pot. In this case, the browner the better. When the onions are caramelised, you deglaze with a splash of good white wine, add a bit of water, bring to the boil and simmer until it's reduced a little more. Et voila! Perhaps the piècede résistance is a thick slice of sourdough bread which has been covered in gruyere cheese (or a simple mozzarella for an equally maximum cheesy pull and depth of flavour) and broiled under the grill until the cheese is bubbling away. Use this to lavishly dip into the rustic French Onion Soup for adding even more flavour.


Rustic French Onion Soup Recipe Rustic French Onion Soup Recipe


Why you are going to love this soup?

  • It's super simple to prepare and you only need a handful of pantry ingredients.
  • It's cosy, comforting, and rustic but it's jam packed with a deeply rich, slightly sweet and satisfying flavour. 
  • If the onion soup wasn't enough, I've included toasty sourdough bread and melty cheese on top because I like my soups extra, plus how can one have a soup and nothing to dip with?  
  • It's the perfect starter soup when you're having friends round for dinner, but also a soup to be enjoyed in your best sweatpants and socks in front of a roaring fire. 
  • It can be served as a starter, or a main meal. Personally, I prefer this rustic French Onion Soup as a starter or a lighter meal. 


Rustic French Onion Soup Recipe Rustic French Onion Soup Recipe


A history lesson

For hundreds of years, French Onion Soup was seen as food for poor people because onions were plentiful and easy to grow. In it's time, it has also been touted as a hangover cure (I cannot attest to this, yet). However the more modern version datesback as far as the 18th century, in Paris when it was made from beef broth and caramelised onions. It went mainstream in the United States in the late 1860's thanks to New York restauranteur Henri Mouquin and chef wide Marie Julie Grandjean Mouquin. And as they say, the rest is history. 


Rustic French Onion Soup Recipe Rustic French Onion Soup Recipe 

How to cut onions, without crying

You’ll need to cut a fair few onions in this recipe and I don’t want there to be any tears. I’ve been sitting here trying to think about how I can explain to you how to cut onions without crying. Instead I found this video on YouTube. Watch till 1 minute 44 seconds and then cut the top of the onion off so you’re left with a beautifully sliced onion. And no tears.


One last note
Please do try this insanely delicious recipe – it really is so simple and so flavourful! If
 I have inspired you to make this Rustic French Onion Soup, and if you love my recipe (fingers crossed), I would love you to leave a 5 star rating below. And did you know? You can also stay in touch with me by following along on Instagram and Pinterest.