
Bananas Foster and Candied Pecan Roll
My extra-vanilla French sponge roll, filled with mashed bananas foster and spiced Madagascar vanilla cream, then crowned with more caramel bananas and chopped candied pecans.
2 hr 55 min · A project
Dessert · · By Ashley
Choux rises on steam alone. No baking powder, no yeast, just water turning to vapor inside a shell that has to set before it falls.

Where the time goes
Making choux pastry (pâte à choux) is pure kitchen chemistry. Unlike other pastries that rely on baking powder or yeast, choux rises entirely from steam. Getting it to puff up beautifully and hold its hollow shape without collapsing demands precision.
I bake these on a silicone baking mat set inside the baking sheet. Thin metal pans can transfer heat too fast and unevenly, scorching the bottoms before the center of the puff has a chance to bake through. A silicone mat insulates the delicate dough, so the underside comes out evenly golden brown.
Instead of a heavy pastry cream or plain whipped cream, the filling is a crème légère: a rich pastry cream lightened with whipped cream. I load it with an extra-heavy dose of my Traditional Grand Teton Bourbon Vanilla, or pure Madagascar vanilla bean paste, so the vanilla punches through cleanly.
For the choux I use King Arthur Unbleached All-Purpose Flour. Two moments decide whether the puffs rise or fall flat: drying the dough on the stove, and judging how much egg it can take.

Serves About 20 puffs
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Heat the milk
In a saucepan, combine the milk, vanilla and ¼ cup of the sugar. Bring to a gentle simmer over medium heat, then take it off the heat.
Whisk the yolks
In a bowl, vigorously whisk the egg yolks, the remaining ¼ cup of sugar and the cornstarch until pale yellow and thick.
Temper
Slowly ladle ½ cup of the hot milk into the egg mixture, whisking constantly so the eggs don’t scramble. Pour the tempered egg mixture back into the saucepan with the rest of the milk.
Thicken
Cook over medium heat, whisking constantly. As soon as it bubbles it will suddenly turn very thick. Keep whisking hard for 1 full minute to cook out the raw starch taste, then take it off the heat.
Cool
Stir in the butter until melted. Strain the cream through a fine-mesh sieve into a clean bowl and press plastic wrap directly onto the surface so no skin forms. Chill completely, at least 2 hours.
Make the choux while the cream chills.
Fold
Once the pastry cream is cold, whip the heavy cream to stiff peaks. Beat the chilled pastry cream until smooth to loosen it, then gently fold in the whipped cream in three batches until it turns light and fluffy. Spoon it into a piping bag.
The pan paste
Heat the oven to 425°F / 218°C and line a large, heavy baking sheet with a silicone baking mat. In a saucepan over medium heat, bring the water, milk, butter, sugar and salt to a rolling boil. The moment it boils, dump in the flour all at once and stir furiously with a wooden spoon until a dough ball forms. Keep stirring and mashing it against the bottom of the hot pan for 2 full minutes.
Look for a thin white film on the bottom of the pan. That means enough moisture has cooked out, which is what makes the puff hollow.
Cool the dough and add the eggs
Move the hot dough to a stand mixer fitted with the paddle, or a large bowl. Beat on medium for 2 minutes to let the steam escape and cool it, so it won’t cook the eggs. Whisk the 4 eggs in a measuring cup. With the mixer on medium-low, add them in 4 additions, letting each blend in completely before the next.
The V test: lift the spatula out of the dough. It should be smooth and glossy and slowly slide down into a clean hanging V. If it breaks off stiffly, it’s too dry, so add a little more egg. If it sheets right off, it’s too wet. Hold back the last splash of egg if the dough is getting runny.
Pipe with space
Spoon the glossy paste into a piping bag fitted with a large round tip. Pipe 2-inch mounds onto the mat, 2 inches apart so hot air can circulate. Wet a finger and press down any pointed tips so they don’t burn, then lightly brush the tops with the beaten extra egg.
The steam bake
Bake at 425°F / 218°C for exactly 15 minutes. The high heat turns the liquid inside to steam and blasts the puffs up. Then turn the oven down to 350°F / 177°C and bake for another 15 to 20 minutes, until the shells are deeply golden brown and feel light and rigid.
Do not open the oven door in the first 15 minutes. The cold draft collapses the steam and the puffs won’t come back.
Release the hidden steam
Take the pan out and immediately poke a small hole in the bottom of each puff with a toothpick or a sharp paring knife. Let them cool completely on a wire rack.
Trapped steam turns back into water as it cools and makes the shells soggy from the inside out.
Assemble
Once the shells are cold, push the piping tip into the steam hole in the bottom of each one and fill until it feels heavy and packed with cream. Dust the tops with powdered sugar and serve.
Ingredients · 2 hr 55 min · Serves About 20 puffs
Extra-vanilla crème légère
Master choux pastry
To finish

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