1
["Preheat oven to 180u00b0C / 375u00b0F and line 2 baking sheets with parchment paper.", "In a small bowl, whisk together the flour, baking powder, and salt. Set aside.", "In the bowl of an electric mixer, beat the eggs the sugar, espresso, and mark of a vanilla bean on high speed for 10 minutes, until thick. The original recipe calls for 15 min, but since I only own a hand mixer, there is no way I'll go for 15 minutes. It turns out great with 10 minutes of mixing, so don't worry.", "While the eggs are whipping (or after, depending on your type of mixer), place the butter in the top of a double boiler or in a small metal bowl on top of a pot of simmering water, and put the chopped chocolate on top. Heat until the butter and chocolate melt. Remove the boiler top from over the water and stir the chocolate and butter until smooth.", "Gently fold the chocolate mixture into the egg mixture. Add the flour mixture to the batter and carefully fold it in.", "Let it rest until the batter thickens slightly, about 4 minutes.", "Drop the batter by heaping teaspoonfuls onto the prepared baking sheets and again let them rest for a few minutes.", "Bake until puffed and cracked, 7 to 9 minutes.", "Carefully transfer to a wire rack, after letting them firm up for 1 minute.
2
While the cookies cool down, prepare the Caramel Sauce.", "Melt sugar in a light saucepan over high heat, stirring consistently. Once the sugar has turned into a brownish color, turn off the heat, add the butter and keep stirring. Add the milk and continue stirring, until the consistency is thick and creamy. Mix in the sea salt and decorate the cookies.", "If you have some sauce left, let it cool a bit and then form squares, for cute caramel bonbons."]
