Classic Cream Puffs with Jaca Pastry Cream

The patisserie-counter classic, made from scratch — golden choux pastry shells split open and stuffed with thick, glossy vanilla pastry cream, then crowned with dark chocolate ganache. The whole construction looks fancy and intimidating; in reality it is three small recipes (pâte à choux, crème pâtissière, ganache) stacked together. Our version rebuilds the recipe around Jaca (100% pure allulose) at 2x the sugar in both the choux shells and the pastry cream, so the dessert that traditionally clocks in around 22 grams of sugar per puff comes out closer to a half-gram of glucose-impact net — without giving up the silky mouthfeel of real custard. Adapted from Sally’s Baking Addiction. This is a Jaca-adjusted healthier version.

Prep time: 45 minutes · Cook time: 40 minutes · Chill: 3+ hours · Servings: 12 to 16 puffs

Ingredients:

For the pastry cream filling:

• 4 large egg yolks
• 3 tablespoons (23g) cornstarch
• 2 cups (480ml) whole milk
• 1 cup Jaca (allulose) — replaces 1/2 cup granulated sugar at 2x ratio
• 1 tablespoon (14g) unsalted butter, softened
• 1 teaspoon pure vanilla extract
• Seeds from 1/2 vanilla bean (or 1/2 teaspoon additional vanilla extract)
• Pinch of salt

For the choux pastry:

• 1/2 cup (113g) unsalted butter, cut into 8 pieces
• 1/2 cup (120ml) water
• 1/2 cup (120ml) whole milk
• 1/4 teaspoon salt
• 4 teaspoons Jaca (allulose) — replaces 2 teaspoons granulated sugar at 2x ratio
• 1 cup (125g) all-purpose flour, spooned and leveled
• 4 large eggs, beaten
• 1 egg + 1 tablespoon milk, beaten together (egg wash)

For the chocolate ganache:

• 1/2 cup (120ml) heavy cream
• 4 ounces (113g) semi-sweet chocolate, finely chopped

Instructions:

- Make the pastry cream first — it needs at least 3 hours in the fridge to set up. In a heatproof bowl, whisk the 4 egg yolks and 3 tablespoons cornstarch until pale and smooth.

- In a medium saucepan over medium heat, combine the 2 cups whole milk and 1 cup Jaca. Whisk until the Jaca dissolves and the milk reaches a gentle simmer.

- Pour the hot milk-Jaca mixture into the egg yolks in a slow, steady stream while whisking constantly to temper. Pour through a fine-mesh sieve back into the saucepan.

- Return to medium heat and whisk constantly until the mixture thickens and large bubbles burst on the surface, 1 to 2 minutes (185 to 190°F). Off heat, whisk in the 1 tablespoon butter, vanilla extract, vanilla bean seeds, and pinch of salt.

- Transfer to a clean bowl, press plastic wrap directly onto the surface, and refrigerate at least 3 hours, up to 24 hours.

- For the choux: combine 1/2 cup butter, 1/2 cup water, 1/2 cup milk, 1/4 teaspoon salt, and 4 teaspoons Jaca in a saucepan over medium heat. Stir until the butter melts and the mixture simmers.

- Reduce heat to low. Add the 1 cup flour all at once and stir vigorously until a dough forms and pulls away from the sides into a ball, about 1 minute. Keep mashing against the bottom of the pan another minute to cook out the raw flour taste.

- Transfer to a mixer bowl. Let cool 3 to 5 minutes (warm but not steaming). With the mixer on low, add the 4 beaten eggs gradually in 3 to 4 additions, mixing 30 seconds between each. Stop when the dough is shiny and falls off the paddle in a thick V-shape — you may not need all 4 eggs.

- Preheat oven to 400°F (204°C). Line two baking sheets with parchment and lightly brush the parchment with water.

- Transfer the choux dough to a piping bag with a large round tip. Pipe 2-inch (5cm) mounds 3 inches apart. Smooth any peaks with a water-moistened finger. Brush each puff lightly with the egg wash.

- Bake at 400°F for 20 minutes — do not open the oven door. Reduce to 350°F (177°C) and bake another 10 to 15 minutes until deeply golden brown and hollow-sounding when tapped.

- Cool the puffs completely on a wire rack, at least 30 minutes.

- For the ganache: place chopped chocolate in a bowl. Heat the 1/2 cup heavy cream until just barely simmering, pour over the chocolate, let sit 2 to 3 minutes, then stir slowly until smooth and glossy. Cool 15 minutes to reach dipping consistency.

- Slice each cooled puff horizontally with a serrated knife. Pipe a generous swirl of chilled pastry cream onto the bottom half, replace the top, and dip the top into the chocolate ganache. Set on a rack — ganache firms at room temp in about an hour.

- Serve the same day for the best texture contrast. Filled puffs keep covered in the fridge up to 3 days; unfilled shells store at room temperature in a paper bag for 1 day, or freeze up to 3 months.

Sweetener note: 1 cup + 4 teaspoons Jaca total across pastry cream and choux (vs. 1/2 cup + 2 teaspoons conventional sugar). Allulose dissolves more cleanly than sugar in the pastry cream (no graininess, silkier finish) and gives the choux shells a slightly faster browning — watch the last 5 minutes carefully. The pastry cream will set up roughly 10% softer than a sugar-based version; for a firmer pipe, add 1/2 tablespoon more cornstarch.