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Ingredients
1 egg yolk
1 tbsp dijon mustard
150 ml olive oil (not extra virgin)
1 tablespoon juice of lemon
0.5 small bunch tarragon chopped
Equipment
bowl
whisk
Directions
Put the egg yolk and mustard in a bowl. With a hand whisk, keep whisking the mixture while gradually adding the olive oil. When all of the oil has been added, season to taste with the lemon juice and stir in the tarragon.
