" Shaping the mounds of dough is easiest to do with a spring-loaded ice cream scoop, although you can use two spoons or a pastry bag with a large, plain tip. 1 cup (250 ml) water ½ teaspoon coarse salt 2 teaspoons sugar 6 tablespoons (90 g) unsalted butter, cut into small chunks 1 cup (135 g) flour 4 large eggs, at room temperature ½ cup (85 g) semisweet chocolate chips ½ cup (60 g) pearl sugar (see Note) Position a rack in the upper third of the oven. Preheat the oven to 425°F (220°C) and line a baking sheet with parchment paper or a silicone baking mat. Heat the water along with the salt, sugar, and butter in a medium saucepan, stirring, until the butter is melted. Remove from heat and dump in all the flour at once. Stir rapidly until the mixture is smooth and pulls away from the sides of the pan. Allow the dough to cool for 2 minutes, stirring occasionally to release the heat; then briskly beat in the eggs, one at a time, until the paste is smooth and shiny. Let cool completely to room temperature, then stir in the chocolate chips. If it’s even slightly warm, they’ll melt. Drop mounds of dough, about 2 tablespoons each, on the baking sheet, evenly spaced. Press pearl sugar crystals liberally over the top and sides of each mound. Use a lot and really press them in. Once the puffs expand, you’ll appreciate the extra effort (and sugar). Bake the chouquettes for 35 minutes, or until puffed and well browned. Serve warm or at room temperature. STORAGE: Choquettes are best eaten the same day they’re made. However, once cooled, they can be frozen in a zip-top freezer bag for up to one month. Defrost at room temperature, then warm briefly on a baking sheet in a moderate oven, until crisp. "
― David Lebovitz , The Sweet Life in Paris: Delicious Adventures in the World's Most Glorious - and Perplexing - City