Ingredients
Units
Scale
- 2 tablespoons butter
- 2 tablespoons all-purpose flour
- 1 medium tomato, diced (about 3/4 cup)
- 1 medium onion, finely chopped
- 1/2 teaspoon salt
- 1 teaspoon Worcestershire sauce
- 1 1/2 cups sharp cheddar cheese, freshly grated
- 1 large egg, beaten
- 1 cup whole milk, scalded
- 1 can (7 oz) tuna, drained and flaked
- 4 slices rye bread, toasted
Instructions
- Make the roux: In a large, heavy skillet over medium-low heat, melt the butter until it foams. Sprinkle in the flour and whisk constantly for 1-2 minutes until the mixture is smooth and just beginning to turn golden. The roux should smell nutty, not raw.
- Add the vegetables: Stir in the diced tomato and chopped onion, breaking up the tomato pieces with your spoon. Add the salt and Worcestershire sauce. Cook for 2-3 minutes, stirring frequently, until the onion softens slightly.
- Incorporate the cheese and egg: Remove the skillet from heat. Add the grated cheddar cheese and beaten egg, stirring quickly to combine. The residual heat will start melting the cheese without scrambling the egg.
- Add the hot milk: Return the skillet to medium-low heat. Slowly pour in the scalded milk while whisking constantly. Continue whisking for 3-4 minutes until the mixture thickens enough to coat the back of a spoon.
- Fold in the tuna: Gently stir in the flaked tuna, taking care not to break it up too much. Let the mixture bubble gently for 1-2 minutes until heated through and slightly thickened.
- Assemble the sandwich: Spoon the hot tuna rarebit generously over toasted rye bread. .
- For a broiled finish: After spooning the tuna mixture onto toast, place the open-faced sandwiches on a baking sheet and broil for 1-2 minutes until the top bubbles and browns in spots. Watch carefully to prevent burning.
Equipment

3 Quart Heavy Bottom Sauce Pan
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KitchenAid Gourmet 4-Sided Stainless Steel Box Grater
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- Cook Time: 10 minutes
- Category: Sandwiches
- Method: Stovetop, Broiled
- Cuisine: American