Cheddar steak burger with caramelised onions and portobello mushrooms | Castello®️

Cheddar steak burger with caramelised onions and portobello mushrooms | Castello®️

www.castellocheese.com

A perfect pairing of fine dining and comfort food – our cheddar steak burger with caramelised onions and portobello mushrooms seats grilled entrecote beneath a

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Ingredients

  • 4 burger buns
  • 4 slices Castello® Tickler mature cheddar
  • oil for grilling
  • portobello mushrooms, sliced
  • 4 120g steaks, such as entrecotes
  • 50 g rocket leaves, rinsed
  • 4 tbsp good mayonnaise
  • 25 g butter
  • 2 onions, thinly sliced
  • ½ tbsp sugar
  • 100 ml brown ale
  • salt
  • ground pepper
  • chips or potato wedges
  • chilli flakes for sprinkling

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