Hazelnut Craquelin Breakfast Puffs with Espresso Whip

Instructions

1. 1

   Make the craquelin. In a bowl, mash the blitzed 1/4 cup toasted hazelnuts with 3 tbsp cultured unsalted butter (softened), 3 tbsp light brown sugar, 1/4 cup all-purpose flour, and 1 pinch flaky sea salt until it forms a uniform dough. Butter is not a garnish here; it’s the structural glue. Roll the dough paper-thin (about 1/8-inch) between two sheets of parchment paper. Slide it into the freezer.

   5 min

   Tip: If your kitchen is warm, work quickly. You want this dough frozen solid so it cuts cleanly later.

2. 2

   Preheat your oven to 400°F (200°C). In a medium saucepan over medium-high heat, bring 1/2 cup water, 4 tbsp cultured unsalted butter (cubed), 1/2 tsp granulated sugar, and 1/4 tsp kosher salt to a rolling boil. Ensure the butter is fully melted before the water bubbles heavily.

   5 min

   Tip: Don't walk away. If the water boils too long before the butter melts, you lose hydration to evaporation, which messes up the final dough.

3. 3

   Dump in the 1/2 cup all-purpose flour all at once. Off the heat, stir vigorously with a wooden spoon until it forms a shaggy dough. Return to medium-low heat and cook for 2 to 3 minutes, stirring constantly. You are making a panade (a cooked flour paste). It is ready when the dough pulls away cleanly from the sides and leaves a thin, hazy film on the bottom of the pan.

   3 min

   Tip: This step gelatinizes the starches. Better gelatinization means better structure, yielding a hollow, lacy crumb.

4. 4

   Transfer the hot panade to a mixing bowl. Let time do the work—wait 2 minutes so you don't scramble the eggs. With a wooden spoon or spatula, beat in the 2 large eggs in three additions. It will look separated and curdled at first. Keep beating. Stop when the dough is glossy, smooth, and falls from the spatula in a heavy, jiggling 'V' shape.

   5 min

   Tip: Depending on humidity, you might not need the final teaspoon of egg, or you might need a splash more. Trust the 'V' shape visual cue.

5. 5

   Transfer the choux to a piping bag (or a zip-top bag with the corner snipped). Pipe 1.5-inch wide mounds onto a parchment-lined baking sheet, spacing them 2 inches apart. Pull the craquelin from the freezer. Stamp out 1.5-inch circles with a biscuit cutter (or shot glass) and gently press one frozen disc onto the top of each piped mound.

   5 min

   Tip: The craquelin acts as a weighted blanket, forcing the choux to expand outward evenly rather than erupting unpredictably.

6. 6

   Place the tray in the oven and immediately drop the temperature to 375°F (190°C). Bake for 25 to 30 minutes until deeply golden brown and puffed. Do not open the oven door early! Choux relies on steam to rise. If you let the steam escape, your puffs will collapse, turning tight like a bad alibi.

   28 min

   Tip: If they look blonde, leave them in. A pale cream puff is a soggy cream puff.

7. 7

   While the choux bakes, make the filling. In a medium bowl, whisk the 1/2 cup mascarpone, 1/2 cup heavy cream, 2 tbsp powdered sugar, and the cooled 1 tbsp instant espresso powder mixture. Whisk just until it holds soft, pillowy peaks. Do not over-whip, or the mascarpone will split. Stash in the fridge.

   5 min

   Tip: Mascarpone breaks easily. Whisk by hand to maintain total control.

8. 8

   Remove the baked choux and immediately poke a tiny hole in the bottom or side of each with a paring knife to vent the residual steam. Let cool completely on a wire rack. To serve, slice them in half horizontally and generously dollop the espresso whip inside.

   15 min

   Tip: Venting ensures the crispy hazelnut shell stays crisp instead of softening as it cools.