Welsh Rarebit

10 September 2026

Welsh Rarebit

Welsh rarebit is the centuries old answer to cheese on toast, and it costs barely more to make. Where plain melted cheese slides off the bread, a proper rarebit sauce thickened with flour and sharpened with mustard and Worcestershire sauce sets into a molten, blistered blanket that clings to every corner.

At around 55p a portion it comfortably beats a shop bought sandwich on price, and it is ready in the time it takes to toast the bread. The sauce takes ten minutes and can be made ahead and kept in the fridge for a few days.

This is proper comfort food from the days when cooks knew how to make a little cheese go a long way, and it still beats anything from the chilled aisle.

Total cost: £2.20 (£0.55 per portion) – Serves 4 people. Prep: 10 mins | Cook: 15 mins

Welsh Rarebit

Toasted bread under a molten mix of cheese, mustard and Worcestershire sauce - the original Welsh comfort food at about 55p a portion.
Prep Time 10 minutes
Cook Time 15 minutes
Servings: 4 people
Course: Lunch, Main Course
Cuisine: british

Ingredients
  

  • 8 slices thick cut white bread
  • 150g mature cheddar, grated
  • 30g butter
  • 30g plain flour
  • 150ml milk
  • 2 tsp English mustard
  • 2 tsp Worcestershire sauce
  • black pepper
  • 2 tomatoes, sliced, to serve

Method
 

  1. Toast the bread lightly so it holds its shape, then lay the slices on a grill pan.
  2. Gently melt the butter in a saucepan, stir in the flour and cook for 1 minute, then add the milk a little at a time, stirring until you have a smooth, thick sauce.
  3. Take off the heat and stir in the cheese, mustard, Worcestershire sauce and plenty of black pepper until you have a thick, glossy paste.
  4. Spoon the cheese mixture generously over each slice of toast, spreading it right to the edges.
  5. Grill for 4-5 minutes until bubbling, blistered and golden in patches. Serve straight away with the sliced tomato.

Tips and Variations

Keep the sauce thick – it should coat the back of a spoon – or it will slide off the toast under the grill. A splash of stout or ale in the sauce is the traditional Welsh touch if you have a can open. Rarebit is forgiving with bread, so use up the end slices of a loaf. Top with a poached egg or the grilled tomatoes to turn it into a full meal, and any leftover sauce keeps in the fridge for up to three days.

Is it cheaper to make this from scratch? Use our Cook vs Buy Calculator to compare the real cost of homemade vs shop-bought.

We will be happy to hear your thoughts

Leave a reply

Freebies
Logo
Shopping cart