Slice cucumbers thinly, place in a bowl.
Whisk lemon juice, olive oil, salt, and pepper together.
Pour the dressing over cucumbers and mix.
Garnish with chopped mint and chill.
For the pudding, heat cream, milk, and sugar in a saucepan.
Dissolve the coffee granules into the hot mixture.
In a separate bowl, whisk egg yolks and cornstarch.
Slowly pour the hot cream mixture into the egg mixture, whisking constantly.
Return the mixture to the saucepan and cook over medium heat until thickened.
Stir in vanilla, then pour into dessert glasses and chill.
Serve the chilled salad alongside the creamy pudding.