Buttermilk Straw Onions

3rd April 2020 0 Comments

  • Serves: 4
  • Cooks in : 1 hour
  • Difficulty: Easy

Straw onions are great as a side or even as a topping for a burger, salad or even with some grilled fish.


Buttermilk onions

  • • 2 large Spanish onions
  • • 500ml buttermilk
  • • Approximately 500ml vegetable or sunflower oil

Flour mix

  • • 300g self-raising flour
  • • 2 tablespoons of cayenne pepper powder
  • • 3 tablespoons of cornflour
  • • 1 tablespoon of garlic powder

Garlic salt

  • • 30g salt
  • • 15g garlic powder


  1. Slice the Spanish onions wafer thin (use a mandolin if you have one, otherwise a sharp knife will do the trick).
  2. Pour the buttermilk into a large bowl, add the onions and soak for 15-20 minutes.
  3. In a separate bowl, mix the flour mix ingredients together – self-raising flour, cayenne pepper powder, cornflour and garlic powder.
  4. Preheat vegetable oil or sunflower oil in a pan.
  5. Coat the onions in the flour mix.
  6. Fry onions until golden brown and crispy, carefully remove from oil using a spider (or a sieve) and lay out on a baking tray lined with kitchen roll to remove oil.
  7. Mix the 30g of salt and 15g of garlic powder together.
  8. Season the onion with the garlic salt to serve.
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