Welsh rarebit is a classic British dish that transforms simple toasted bread into a savory delight. This recipe combines a rich, creamy cheese sauce with the tang of dijon mustard and the umami depth of worcestershire sauce. Perfect for a quick lunch or a comforting snack, it's a delicious way to elevate your everyday toast.
While most of the ingredients for Welsh rarebit are common pantry staples, you might need to pick up dijon mustard and worcestershire sauce if you don't already have them. These two ingredients add a unique flavor profile to the dish, making it distinctively savory and tangy. Both can be found in the condiment aisle of your local supermarket.

Ingredients For Real Welsh Rarebit Recipe
Butter: Adds richness and helps create the base of the sauce.
Flour: Used to thicken the sauce, creating a smooth and creamy texture.
Milk: Provides the liquid base for the sauce, making it creamy and smooth.
Sharp cheddar cheese: The star ingredient, giving the sauce its rich, cheesy flavor.
Dijon mustard: Adds a tangy, slightly spicy note to the sauce.
Worcestershire sauce: Brings a deep umami flavor, enhancing the overall taste.
Bread: The vehicle for the delicious cheese sauce, best when toasted to a golden brown.
Technique Tip for This Recipe
When making the cheese sauce, ensure you whisk the flour and butter mixture thoroughly to avoid any lumps. Gradually adding the milk while continuously whisking will help achieve a smooth and creamy consistency. For an extra depth of flavor, consider using a combination of sharp cheddar and another type of cheese, such as gruyere or parmesan.
Suggested Side Dishes
Alternative Ingredients
butter - Substitute with margarine: Margarine can provide a similar texture and flavor, making it a suitable alternative for those avoiding dairy.
flour - Substitute with cornstarch: Cornstarch can thicken the sauce similarly to flour, though you may need to use slightly less.
milk - Substitute with unsweetened almond milk: Unsweetened almond milk can replace regular milk for a dairy-free option without significantly altering the taste.
sharp cheddar cheese - Substitute with vegan cheddar cheese: Vegan cheddar cheese can provide a similar flavor and texture for those avoiding dairy.
dijon mustard - Substitute with yellow mustard: Yellow mustard can be used in place of dijon mustard, though it may be slightly less spicy and complex in flavor.
worcestershire sauce - Substitute with soy sauce: Soy sauce can provide a similar umami flavor, though it lacks the tanginess of worcestershire sauce.
bread - Substitute with gluten-free bread: Gluten-free bread can be used for those with gluten sensitivities or celiac disease, providing a similar base for the dish.
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How to Store or Freeze This Recipe
Allow the cheese sauce to cool to room temperature before storing. This prevents condensation, which can make the sauce watery.
Transfer the cheese sauce into an airtight container. This helps maintain its freshness and prevents it from absorbing other odors in the fridge.
Store the cheese sauce in the refrigerator for up to 3 days. Reheat gently on the stove over low heat, stirring frequently to avoid curdling.
For freezing, pour the cooled cheese sauce into a freezer-safe container, leaving some space at the top for expansion. Seal tightly.
Label the container with the date to keep track of its freshness. The cheese sauce can be frozen for up to 2 months.
To reheat frozen cheese sauce, thaw it in the refrigerator overnight. Reheat on the stove over low heat, whisking constantly to restore its smooth texture.
Toast the bread fresh when ready to serve. Avoid freezing toasted bread as it can become soggy upon thawing.
If you must freeze the bread, do so before toasting. Wrap each slice individually in plastic wrap and place them in a freezer bag. Toast directly from frozen for best results.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Place the leftover Welsh rarebit on a baking sheet and cover it loosely with aluminum foil to prevent the bread from drying out. Heat for about 10-15 minutes, or until the cheese sauce is bubbly and the bread is warmed through.
For a quicker method, use a microwave. Place the leftover Welsh rarebit on a microwave-safe plate and cover it with a microwave-safe lid or another plate to retain moisture. Heat on medium power for 1-2 minutes, checking halfway through to ensure the cheese sauce is evenly heated.
If you prefer a stovetop method, heat a non-stick skillet over medium-low heat. Place the leftover Welsh rarebit in the skillet, cover with a lid, and cook for about 5-7 minutes. This method helps maintain the bread's texture while reheating the cheese sauce evenly.
For an extra crispy option, use a toaster oven. Preheat the toaster oven to 350°F (175°C). Place the leftover Welsh rarebit on the toaster oven tray and heat for 8-10 minutes, or until the cheese sauce is hot and the bread is crispy.
If you have an air fryer, preheat it to 320°F (160°C). Place the leftover Welsh rarebit in the air fryer basket and heat for 5-7 minutes. This method will give you a crispy bread base while keeping the cheese sauce creamy and delicious.
Best Tools for This Recipe
Saucepan: Used to melt the butter and cook the flour, as well as to prepare the cheese sauce.
Whisk: Essential for whisking the flour into the melted butter and for gradually incorporating the milk to ensure a smooth sauce.
Measuring spoons: Needed to measure out the butter, flour, mustard, and Worcestershire sauce accurately.
Measuring cup: Used to measure the milk and grated cheddar cheese.
Grater: Required to grate the sharp cheddar cheese.
Toaster: Used to toast the bread slices.
Spatula: Handy for stirring the cheese sauce to ensure it becomes smooth.
Cutting board: Provides a stable surface for grating the cheese.
Knife: Useful for cutting the butter into smaller pieces if needed.
Serving plate: To serve the toasted bread with the cheese sauce poured over it.
How to Save Time on Making This Recipe
Pre-measure ingredients: Measure out the butter, flour, milk, cheese, mustard, and worcestershire sauce before starting to save time during cooking.
Use pre-grated cheese: Opt for pre-grated sharp cheddar cheese to cut down on prep time.
Toast bread simultaneously: Toast the bread while preparing the cheese sauce to streamline the process.
Make a roux ahead: Prepare the butter and flour mixture (roux) in advance and store it in the fridge for quick use.
Use a microwave: Heat the milk in the microwave before adding it to the roux to speed up the thickening process.

Real Welsh Rarebit Recipe
Ingredients
Main Ingredients
- 2 tablespoon Butter
- 2 tablespoon Flour
- 1 cup Milk
- 1 cup Sharp Cheddar Cheese, grated
- 1 teaspoon Dijon Mustard
- 1 teaspoon Worcestershire Sauce
- 4 slices Bread, toasted
Instructions
- Melt butter in a saucepan over medium heat.
- Whisk in flour and cook for 1-2 minutes.
- Gradually add milk, whisking constantly until thickened.
- Stir in cheese, mustard, and Worcestershire sauce until smooth.
- Pour cheese sauce over toasted bread and serve immediately.
Nutritional Value
Keywords
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