Welsh rarebit is a classic British dish that elevates the humble slice of toast into a rich and savory delight. This recipe combines a creamy cheese sauce with the tang of Worcestershire sauce and Dijon mustard, creating a comforting and indulgent meal that's perfect for any time of day.
While most of the ingredients for Welsh rarebit are common pantry staples, Worcestershire sauce and Dijon mustard might not be found in every household. These ingredients add depth and complexity to the cheese sauce, so be sure to pick them up at the supermarket if you don't already have them on hand.

Ingredients For Real Welsh Rarebit Recipe
Butter: Adds richness and helps create the base for the sauce.
Flour: Used to thicken the sauce by forming a roux with the butter.
Milk: Provides the liquid base for the cheese sauce, making it creamy and smooth.
Sharp cheddar cheese: The main flavor component, giving the sauce its cheesy goodness.
Worcestershire sauce: Adds a tangy, umami flavor that enhances the overall taste.
Dijon mustard: Brings a subtle heat and depth to the sauce.
Bread: The vehicle for the delicious cheese sauce, best when toasted to a golden brown.
Technique Tip for This Recipe
When making the roux, ensure you cook it for the full 1-2 minutes to eliminate any raw flour taste. Gradually adding the milk while whisking continuously will help prevent lumps, resulting in a smooth and creamy sauce.
Suggested Side Dishes
Alternative Ingredients
butter - Substitute with margarine: Margarine can be used as a dairy-free alternative and has a similar fat content.
flour - Substitute with cornstarch: Cornstarch can thicken the sauce similarly to flour, though you may need to use less of it.
milk - Substitute with unsweetened almond milk: Unsweetened almond milk is a good dairy-free alternative that won't alter the flavor significantly.
sharp cheddar cheese - Substitute with gruyere cheese: Gruyere has a similar melting quality and a rich, nutty flavor that complements the dish well.
worcestershire sauce - Substitute with soy sauce: Soy sauce provides a similar umami flavor, though you may want to add a bit of vinegar and sugar to mimic the complexity of worcestershire sauce.
dijon mustard - Substitute with yellow mustard: Yellow mustard can be used in place of dijon, though it has a milder flavor and less complexity.
bread - Substitute with gluten-free bread: Gluten-free bread is a suitable alternative for those with gluten intolerance or celiac disease.
Other Alternative Recipes Similar to This Dish
How to Store or Freeze This Recipe
Allow the cheese sauce to cool completely before storing. This prevents condensation, which can make the sauce watery.
Transfer the cooled cheese sauce to an airtight container. Make sure the container is sealed tightly to maintain freshness.
Store the cheese sauce in the refrigerator for up to 3 days. Reheat gently on the stove over low heat, stirring frequently to avoid separation.
If you plan to freeze the cheese sauce, pour it into a freezer-safe container, leaving some space at the top for expansion. Seal the container 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. Once thawed, reheat it on the stove over low heat, stirring continuously until smooth.
For the toasted bread, it's best to toast it fresh. However, if you need to store it, place the slices in a resealable plastic bag or an airtight container. Keep them at room temperature for up to 2 days.
To freeze toasted bread, wrap each slice individually in plastic wrap or aluminum foil, then place them in a freezer-safe bag. They can be frozen for up to 1 month.
When ready to serve, reheat the toasted bread in a toaster or oven until crispy. Pour the reheated cheese sauce over the toasted bread and enjoy immediately.
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. 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 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 even heating.
If you prefer a crispier texture, use a toaster oven. Set it to 350°F (175°C) and place the Welsh rarebit directly on the rack or a baking sheet. Heat for 8-10 minutes until the cheese sauce is bubbly and the bread is crispy.
For 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, checking occasionally to ensure the cheese sauce is melted and the bread is warmed through.
If you have an air fryer, preheat it to 350°F (175°C). Place the Welsh rarebit in the basket and heat for 5-7 minutes, or until the cheese sauce is bubbly and the bread is crispy.
Best Tools for This Recipe
Saucepan: Use this to melt the butter and cook the roux, as well as to prepare the cheese sauce.
Whisk: Essential for combining the flour and butter to form a smooth roux and for incorporating the milk without lumps.
Measuring spoons: Use these to measure out the butter, flour, Worcestershire sauce, and Dijon mustard accurately.
Measuring cup: Necessary for measuring the milk and grated cheese.
Grater: Use this to grate the sharp cheddar cheese.
Toaster: Toast the bread slices to the desired level of crispiness.
Spatula: Handy for stirring the cheese sauce until it is smooth and well combined.
Cutting board: Provides a stable surface for grating cheese and preparing other ingredients.
Knife: Useful for cutting the cheese into smaller chunks before grating, if needed.
Serving plate: Place the toasted bread slices on this before pouring over the cheese sauce.
How to Save Time on Making This Recipe
Pre-grate the cheese: Save time by grating the cheese in advance and storing it in an airtight container in the fridge.
Use pre-toasted bread: Toast the bread ahead of time and keep it in a warm oven until ready to use.
Measure ingredients beforehand: Have all ingredients measured and ready to go before you start cooking.
Make the roux in bulk: Prepare a larger batch of roux and store it in the fridge for future use.
Microwave the milk: Warm 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 Worcestershire Sauce
- 1 teaspoon Dijon Mustard
- 4 slices Bread, toasted
Instructions
- Melt the butter in a saucepan over medium heat.
- Add the flour and whisk to form a roux. Cook for 1-2 minutes.
- Gradually add the milk, whisking continuously until smooth and thickened.
- Add the grated cheese, Worcestershire sauce, and mustard. Stir until the cheese is melted and the sauce is smooth.
- Pour the cheese sauce over the toasted bread slices and serve immediately.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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