Roast beef sandwich with lime mayonnaise

Name: roast beef sandwich with lime mayonnaise
Total time: 20 min
Yield: 4
Ingredients: 1 egg yolk for the mayonnaise; 1 teaspoon french mustard for the mayonnaise; 1 tablespoon lime juice for the mayonnaise; 1 teaspoon lime grater for the mayonnaise; 150 milliliters sunflower oil for the mayonnaise; 1 sourdough Bread for the sandwich; 8 cut bread for the sandwich; 4 leaf lettuce for the sandwich; 4 tablespoon alfalfa for the sandwich; 200 gram Roast beef for the sandwich; 200 gram pepper rosemary for the sandwich

Ingredients

1 egg yolk for the mayonnaise
1 teaspoon french mustard for the mayonnaise
1 tablespoon lime juice for the mayonnaise
1 teaspoon lime grater for the mayonnaise
150 milliliters sunflower oil for the mayonnaise
1 sourdough Bread for the sandwich

8 cut bread for the sandwich
4 leaf lettuce for the sandwich
4 tablespoon alfalfa for the sandwich
200 gram Roast beef for the sandwich
200 gram pepper rosemary for the sandwich

Directions

Make sure that all ingredients for the mayonnaise are at room temperature. Beat the egg yolk with a whisk or electric mixer with the mustard, 1 tablespoon lime juice, the lime zest, a pinch of salt and pepper to a smooth mixture.
Pour in small amounts of oil until all the oil has run out and the mayonnaise has become thick and creamy.
Add some lime juice to taste.
Spread all the slices of bread with some lime mayonnaise and top with 4 lettuce and alfalfa. Divide the roast beef over it and cover with the other slices. Cut the sandwiches diagonally and serve immediately.