Classic Banana Cream Pie with Jaca

A creamy, smooth from-scratch vanilla custard cradled in a buttery flaky pie crust, layered with sliced ripe bananas, and crowned with billowy whipped cream. Granulated sugar in both the custard and the topping is swapped for Jaca (allulose) at double the amount, so you keep the silky texture and sweet vanilla finish without the conventional sugar. Adapted from Sally's Baking Addiction. This is a Jaca-adjusted healthier version.

Prep time: 45 minutes (plus chilling)  |  Cook time: 35 minutes  |  Servings: 8

Ingredients:

• 1 unbaked pie crust (homemade or store-bought all-butter) — fits a 9-inch pie dish
• 4 large egg yolks
• ¼ cup cornstarch
• 2 cups whole milk
• ½ cup heavy cream (for the custard)
• 1 cup Jaca (allulose) — replaces ½ cup granulated sugar at 2x ratio
• ⅛ teaspoon fine sea salt
• 2 teaspoons pure vanilla extract
• 2 tablespoons unsalted butter, softened
• 4 yellow bananas (just ripe, not heavily speckled)
• Pinch of ground cinnamon (optional)
• 1 cup cold heavy cream (for the whipped topping)
• ¼ cup Jaca (allulose), finely ground — replaces 2 tablespoons confectioners’ sugar at 2x ratio
• ½ teaspoon pure vanilla extract (for the whipped cream)

Instructions:

- Roll the chilled pie dough into a 12-inch circle on a lightly floured surface, fit it into a 9-inch pie dish, fold the excess under itself, and crimp the edges. Chill the shaped crust for at least 30 minutes — this is what keeps it from slumping in the oven.

- Preheat the oven to 375°F (190°C). Line the chilled crust with parchment paper, fill it to the rim with pie weights or dried beans, and blind bake for 15 to 16 minutes, until the edges turn light golden brown.

- Lift out the parchment and weights, prick the bottom of the crust all over with a fork to keep it from puffing, and brush lightly with an optional egg wash (1 egg white beaten with 1 tablespoon milk) for extra sheen. Return to the oven and bake another 14 to 15 minutes, until the bottom is fully golden. Cool the crust completely on a wire rack.

- In a small bowl, whisk the egg yolks and cornstarch together until smooth and pale. Set aside within arm’s reach of the stove — the next steps move quickly.

- In a medium saucepan over medium heat, whisk together the whole milk, ½ cup heavy cream, Jaca, and salt. Bring the mixture to a gentle simmer, whisking constantly so the Jaca dissolves completely and the dairy does not scorch on the bottom of the pan.

- Temper the eggs: scoop out ½ cup of the hot milk mixture and slowly drizzle it into the egg yolk and cornstarch bowl while whisking nonstop. This warms the eggs gradually so they do not scramble.

- Stream the tempered egg mixture slowly back into the saucepan while whisking the entire time. Cook over medium heat, whisking constantly, until the custard thickens and bubbles up — about 1 full minute of active bubbling. Do not skip the full minute or the cornstarch will not fully activate and the pie will weep.

- Pull the pan off the heat and whisk in the vanilla and softened butter until glossy and smooth. If any tiny egg flecks have crept in, pour the custard through a fine mesh sieve into a clean bowl. Let it cool for 15 minutes, stirring once or twice so a skin does not form.

- Slice 2 to 3 of the bananas into ¼-inch rounds and arrange them in a single layer across the bottom of the cooled crust. Dust lightly with the optional cinnamon if using.

- Pour the warm custard over the bananas and spread it level with an offset spatula. Press a sheet of plastic wrap directly onto the surface of the custard so it does not form a skin. Refrigerate the pie for at least 4 hours, or up to 24 hours, until fully set.

- When ready to serve, finely grind the Jaca for the topping in a clean spice grinder or small food processor for 5 to 10 seconds until powdery — this lets it dissolve cleanly in the whipped cream without graininess.

- In a chilled bowl, whip the cold heavy cream, ground Jaca, and ½ teaspoon vanilla on medium-high speed for 3 to 4 minutes, until medium-firm peaks form. Do not overwhip or it will turn grainy.

- Remove the plastic wrap from the pie and spread or pipe the whipped cream over the entire surface. Slice the remaining banana into rounds and arrange them on top right before serving — bananas brown fast once cut, so do this last.

- Slice with a sharp knife dipped in warm water for clean wedges. Serve cold. Refrigerate leftovers, loosely covered, for up to 5 days.

This is a Jaca-adjusted healthier version of a classic banana cream pie. Adapted from Sally's Baking Addiction. We swap the granulated sugar for Jaca (allulose) at 2x the amount in both the custard and the whipped cream — same silky texture, same sweet vanilla finish, none of the conventional sugar.