Welsh rarebit is a classic British dish that transforms simple toasted bread into a savory delight. The rich, creamy cheese sauce poured over the toast makes for a comforting and indulgent meal. Perfect for a quick lunch or a cozy dinner, this recipe is sure to become a favorite.
While most of the ingredients for Welsh rarebit are common pantry staples, you might need to pick up Worcestershire sauce and Dijon mustard. These ingredients add depth and a slight tang to the cheese sauce, making it uniquely flavorful. 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.
All-purpose flour: Used to thicken the sauce, creating a smooth consistency.
Milk: Provides creaminess and helps to blend the flavors together.
Sharp cheddar cheese: The star of the dish, offering a bold and tangy flavor.
Dijon mustard: Adds a subtle tang and complexity to the sauce.
Worcestershire sauce: Brings a savory depth and umami flavor to the dish.
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 consistency. For an extra depth of flavor, consider using a mix of sharp cheddar and another type of cheese, such as Gruyère. Toasting the bread until it's golden and crisp will provide a perfect contrast to the creamy sauce.
Suggested Side Dishes
Alternative Ingredients
butter - Substitute with margarine: Margarine can be used as a non-dairy alternative and provides a similar texture and flavor.
butter - Substitute with olive oil: Olive oil is a healthier fat option and can be used to create a similar base for the sauce.
all-purpose flour - Substitute with cornstarch: Cornstarch can be used as a thickening agent and is gluten-free.
all-purpose flour - Substitute with rice flour: Rice flour is another gluten-free option that works well as a thickener.
milk - Substitute with almond milk: Almond milk is a non-dairy alternative that provides a similar creamy texture.
milk - Substitute with oat milk: Oat milk is another non-dairy option that has a neutral flavor and creamy consistency.
sharp cheddar cheese - Substitute with gruyere cheese: Gruyere cheese has a similar sharpness and melts well.
sharp cheddar cheese - Substitute with vegan cheese: Vegan cheese can be used for a dairy-free option and provides a similar texture.
dijon mustard - Substitute with yellow mustard: Yellow mustard can be used if Dijon is unavailable, though it has a milder flavor.
dijon mustard - Substitute with whole grain mustard: Whole grain mustard provides a similar tangy flavor with added texture.
worcestershire sauce - Substitute with soy sauce: Soy sauce can provide a similar umami flavor, especially in vegetarian versions.
worcestershire sauce - Substitute with tamari: Tamari is a gluten-free alternative to soy sauce and can be used similarly.
bread - Substitute with gluten-free bread: Gluten-free bread can be used for those with gluten intolerance.
bread - Substitute with sourdough bread: Sourdough bread adds a tangy flavor and robust texture.
Alternative Recipes Similar to This Dish
How to Store or Freeze This Recipe
Allow the cheese sauce to cool completely before storing. This helps prevent condensation, which can make the sauce watery.
Transfer the cooled cheese sauce into an airtight container. Make sure to leave a little space at the top to allow for expansion if you plan to freeze it.
Label the container with the date and contents. This helps you keep track of how long it has been stored.
Store the container in the refrigerator if you plan to use the cheese sauce within 3-4 days. For longer storage, place the container in the freezer, where it can last up to 2 months.
To reheat refrigerated cheese sauce, transfer it to a saucepan and warm over low heat, stirring frequently to prevent it from sticking or burning. You may need to add a splash of milk to restore its creamy consistency.
For frozen cheese sauce, thaw it in the refrigerator overnight before reheating. Once thawed, follow the same reheating instructions as for refrigerated sauce.
If you have leftover toasted bread, store it separately in an airtight container at room temperature for up to 2 days. Re-toast the bread before serving to restore its crispiness.
Avoid freezing the toasted bread as it can become soggy upon thawing. Instead, freeze only the cheese sauce and prepare fresh toasted bread when ready to serve.
For a quick meal, you can pre-toast the bread and store it in the refrigerator for up to a day. When ready to serve, reheat the cheese sauce and pour it over the pre-toasted bread.
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. Cover it with a microwave-safe lid or a damp paper towel to retain moisture. Heat on medium power for 1-2 minutes, checking halfway through to ensure it heats evenly.
If you prefer a stovetop method, heat a non-stick skillet over medium-low heat. Place the leftover Welsh rarebit in the skillet and cover with a lid. Heat for about 5-7 minutes, or until the cheese sauce is melted and the bread is warmed through, flipping halfway if necessary.
For a crispy finish, 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 10-12 minutes, or until the cheese sauce is bubbly and the bread is warmed through.
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, checking halfway through to ensure even heating. This method will give you a nice, crispy texture.
Best Tools for This Recipe
Saucepan: Used to melt the butter and cook the flour to create the roux, and to mix the cheese sauce.
Whisk: Essential for blending the flour into the melted butter and for whisking the milk into the roux to ensure a smooth sauce.
Measuring spoons: Needed to measure out the butter, flour, dijon mustard, and worcestershire sauce accurately.
Measuring cup: Used to measure the milk and grated cheese.
Grater: For grating the sharp cheddar cheese.
Toaster: Used to toast the bread slices.
Spatula: Helpful for stirring the cheese sauce until smooth.
Knife: Useful for cutting the butter into smaller pieces for easier melting.
Cutting board: Provides a surface for grating cheese and cutting butter.
Serving plate: To serve the finished Welsh rarebit on.
How to Save Time on Making This Recipe
Pre-grate the cheese: Grate the sharp cheddar cheese in advance and store it in the fridge to save time during cooking.
Use pre-toasted bread: Toast the bread slices ahead of time and keep them in an airtight container to speed up the final assembly.
Measure ingredients beforehand: Measure out the butter, flour, milk, dijon mustard, and worcestershire sauce before you start cooking to streamline the process.
Make the sauce in bulk: Prepare a larger batch of the cheese sauce and refrigerate or freeze portions for future use.

Real Welsh Rarebit Recipe
Ingredients
Main Ingredients
- 2 tablespoon Butter
- 2 tablespoon All-purpose 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.
- Add grated cheese, mustard, and Worcestershire sauce. Stir until cheese is melted and sauce is smooth.
- Pour cheese sauce over toasted bread slices and serve immediately.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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