For each serving:
6 – 8 cucumber slices, thinly sliced
1 1/2 teaspoons boiled dressing (see recipe below)
1/8 teaspoon grated onion
2 slices bread (preferably thinly sliced)
butter
leaf lettuce
Put boiled dressing and grated onion in a small bowl; stir to combine. Add cucumber slices. Gently roll and stir the slices to coat with the dressing. Set aside.
Butter the bread slices. Put the lettuce leaf on one slice. Top with the cucumber slices that are coated with dressing. Put the second butter slice of bread on top. Serve immediately.
Boiled Dressing
2 egg yolks, well beaten
1/2 teaspoon salt
1/2 tablespoon sugar
1 tablespoon flour
3/4 cup milk
1/4 cup lemon juice
2 tablespoons butter or olive oil
Put beaten egg yolks, salt, sugar and flour in a small bowl; stir until blended. Add milk, lemon juice, and butter or olive oil. Put in a saucepan, and heat using medium heat while stirring constantly. Cook until the mixture begins to thicken, remove from heat and refrigerate. If the mixture begins to curdle place the pan in a larger pan of cold water and beat vigorously using a mixer.
The dressing will keep in the refrigerator for several days.
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