Welsh rarebit is a classic British dish that transforms simple toasted bread into a gourmet delight. This recipe features a rich and creamy cheese sauce, perfect for a cozy meal or an indulgent snack. The combination of sharp cheddar cheese, dijon mustard, and Worcestershire sauce creates a savory and tangy flavor profile that is hard to resist.
While most of the ingredients for Welsh rarebit are common pantry staples, you might need to pick up dijon mustard and Worcestershire sauce if they are not already in your kitchen. These two ingredients add a unique depth of flavor to the cheese sauce, making it essential to the dish's authenticity.

Ingredients for Real Welsh Rarebit Recipe
Butter: Adds richness and helps create the base of the cheese sauce.
All-purpose flour: Used to thicken the sauce, creating a smooth and creamy texture.
Milk: Provides the liquid component for the sauce, making it creamy and smooth.
Dijon mustard: Adds a tangy and slightly spicy flavor to the cheese sauce.
Worcestershire sauce: Contributes a savory and umami depth to the dish.
Sharp cheddar cheese: The star ingredient, providing a rich and robust cheese flavor.
Bread: The base for the dish, toasted to provide a crunchy contrast to the creamy cheese sauce.
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 mix of sharp cheddar and another type of cheese, such as gruyere or parmesan. Toast the bread until it's golden and crisp to provide a sturdy base for the rich sauce.
Suggested Side Dishes
Alternative Ingredients
butter - Substitute with margarine: Margarine can be used as it has a similar fat content and will provide a similar texture and flavor.
all-purpose 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 be used for a dairy-free option, maintaining a similar consistency.
dijon mustard - Substitute with yellow mustard: Yellow mustard can be used as it provides a similar tangy flavor, though it is slightly milder.
worcestershire sauce - Substitute with soy sauce: Soy sauce can be used for a similar umami flavor, though it will be less complex.
sharp cheddar cheese - Substitute with gruyère cheese: Gruyère cheese can be used as it melts well and has a rich, nutty flavor.
bread - Substitute with gluten-free bread: Gluten-free bread can be used for those with gluten sensitivities, providing a similar base for the dish.
Other Alternative Recipes Similar to This Dish
How to Store / Freeze This Recipe
- Allow the cheese sauce to cool completely before storing. This prevents condensation and helps maintain the texture.
- Transfer the cheese sauce into an airtight container. Make sure to leave some space at the top to accommodate any expansion if freezing.
- Store the cheese sauce in the refrigerator for up to 3 days. Reheat gently on the stove over low heat, stirring frequently to prevent the sauce from separating.
- For longer storage, freeze the cheese sauce. It can be kept in the freezer for up to 2 months.
- To freeze, pour the cooled cheese sauce into a freezer-safe bag or container. Label with the date to keep track of its freshness.
- When ready to use, thaw the cheese sauce in the refrigerator overnight. Reheat slowly on the stove, whisking to restore its creamy consistency.
- Avoid freezing the toasted bread as it can become soggy. Instead, toast fresh slices when ready to serve.
- If you have leftover Welsh rarebit already assembled, store it in the refrigerator in an airtight container for up to 1 day. Reheat in the oven at 350°F (175°C) until warmed through and the cheese sauce is bubbly.
- For best results, always use fresh sharp cheddar cheese and high-quality bread to maintain the dish's authentic flavor and texture.
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. Bake for about 10-15 minutes or until the cheese sauce is bubbly and the bread is heated through.
For a quicker method, use a microwave. Place the Welsh rarebit on a microwave-safe plate and cover it with a microwave-safe lid or another plate to prevent splattering. Heat on medium power for 1-2 minutes, checking halfway through to ensure the cheese sauce doesn't overheat and separate.
If you prefer a stovetop method, heat a non-stick skillet over medium-low heat. Place the 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 toaster oven, set it to 350°F (175°C). Place the Welsh rarebit on the toaster oven tray and heat for about 10 minutes, or until the cheese sauce is bubbly and the bread is hot.
If you have an air fryer, preheat it to 350°F (175°C). Place the Welsh rarebit in the air fryer basket and heat for 5-7 minutes, checking halfway to ensure the cheese sauce is evenly melted and the bread is warmed through.
Best Tools for This Recipe
Saucepan: A medium-sized saucepan is essential for melting the butter, cooking the flour, and making the cheese sauce.
Whisk: A whisk is necessary for blending the flour into the butter and for ensuring a smooth, lump-free sauce when adding the milk.
Measuring spoons: Use measuring spoons to accurately measure the butter, flour, dijon mustard, and worcestershire sauce.
Measuring cup: A measuring cup is needed to measure out the milk.
Grater: A grater is used to grate the sharp cheddar cheese.
Toaster: A toaster is used to toast the bread slices.
Spatula: A spatula can help in stirring the cheese sauce and ensuring it is well-mixed.
Cutting board: A cutting board provides a surface to grate the cheese and prepare other ingredients.
Knife: A knife might be needed to cut the cheese into smaller chunks before grating.
Serving plate: A serving plate is used to place the toasted bread slices and pour the cheese sauce over them.
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 preparation.
Use pre-toasted bread: Toast the bread slices ahead of time and keep them in an airtight container to speed up the process.
Measure ingredients beforehand: Measure out the butter, flour, milk, dijon mustard, and worcestershire sauce before you start cooking.
Make the sauce in bulk: Prepare a larger batch of the cheese sauce and store it in the fridge for quick reheating later.

Real Welsh Rarebit Recipe
Ingredients
Main Ingredients
- 2 tablespoons Butter
- 2 tablespoons All-purpose flour
- 1 cup Milk
- 1 teaspoon Dijon mustard
- 1 teaspoon Worcestershire sauce
- 2 cups Sharp cheddar cheese, grated
- 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 smooth and thickened.
- Stir in mustard and Worcestershire sauce.
- Remove from heat and stir in grated cheese until melted and 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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