Friday, July 30, 2010

title pic My second Daring Baker’s Challenge -Bostini

Posted by Gabi on 29 October 07

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Today is the day the Daring Bakers post the October 2007 challenge and TaDa! -this month Mary at Alpineberryis hosting and she has chosen a “Bostini.” This is a variation of a Boston Cream Pie.  A chiffon cake sits atop a pastry cream custard base and is topped by a chocolate glaze.

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Allowed modifications were basically scaling, garnishes, finished size and flavour substitution for orange juice -as long as the cake was still light colored -so no espresso or chocolate variations.

My recipe notes:

This dessert was good but very rich with a huge amount of eggs and cream. I don’t love chiffon cakes in general- if I am going to have cake I prefer one made with butter to one made with oil.  And…this is the kind of cake that requires careful mixing- making sure you have enough loft in your egg whites to support the cake and so they will not deflate when folding them in- I always lighten the batter with about a 1/3 of the whites then fold the rest in. You need to make sure you don’t have any gummy stuff left on the bottom of your bowl after mixing and you need to be careful  with the oven arrangements as this cake can deflate and fall.  Mine turned out great. No gumminess- no separation, no falling. I baked these in brioche tins for the lovely scalloped edges.

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The pastry cream custard is straight forward- make sure you split the vanilla bean and scrape the seeds out with the dull side of a paring knife into the cream for maximum vanilla flavour infusion.

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I’m sure you already know this tip but in case not: When separating eggs I find it best to break the egg over a small glass and transfer the egg white and yolk to other bowls. That way I never get yolk in my whites (which will prevent them from whipping properly) and if you get a bad egg you can dispose of it without ruining your other eggs.

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Make sure to cook the pastry cream sufficiently to get a definite coating on the back of a wooden spoon as shown above. I use a “gravy style” whisk to stir for absolutely smooth results. I also added a little more vanilla bean paste after the pastry cream was cooked to amplify the flavour. I chose to use cherry juice instead of orange juice in my cake and added a little finely chopped cherries and tangerine zest instead of just the orange zest. I like the flavour combination of cherry, vanilla and chocolate- it worked for me. As for the chocolate glaze I used bittersweet Callebaut. Next time I think I will make a ganache with cream and a little liqueur rather than a glaze with just butter. I want it a little creamier with maybe some kirsch.

Here’s the recipe we were given:

Bostini Cream Pie
(from Donna Scala & Kurtis Baguley of Bistro Don Giovanni and Scala’s Bistro)
Makes 8 generous servings

INGREDIENTS:

Custard

3/4 cup whole milk
2 3/4 tablespoons cornstarch
1 whole egg, beaten
9 egg yolks, beaten
3 3/4 cups heavy whipping cream
1/2 vanilla bean (EDITED: vanilla extract is okay)
1/2 cup + 1 tablespoon sugar

Chiffon Cake

1 1/2 cups cake flour
3/4 cup superfine sugar
1 1/3 teaspoons baking powder
1/3 teaspoon salt
1/3 cup canola oil
1/3 cup beaten egg yolks (3 to 4 yolks)
3/4 cup fresh orange juice
1 1/2 tablespoons grated orange zest
1 teaspoon pure vanilla extract
1 cup egg whites (about 8 large)
1 teaspoon cream of tartar

Chocolate Glaze

8 ounces semi or bittersweet chocolate
8 ounces unsalted butter

INSTRUCTIONS

To prepare the custard:

Combine the milk and cornstarch in a bowl; blend until smooth. Whisk in the whole egg and yolks, beating until smooth. Combine the cream, vanilla bean and sugar in a saucepan and carefully bring to a boil. When the mixture just boils, whisk a ladleful into the egg mixture to temper it, then whisk this back into the cream mixture. Cook, stirring constantly, until the mixture is thick enough to coat the back of a spoon. Strain the custard and pour into 8 large custard cups. Refrigerate to chill.

To prepare the chiffon cakes:

Preheat the oven to 325°F. Spray 8 molds with nonstick cooking spray. You may use 7-ounce custard cups, ovenproof wide mugs or even large foil cups. Whatever you use should be the same size as the custard cups.

Sift the cake flour, sugar, baking powder and salt into a large bowl. Add the oil, egg yolks, orange juice, zest and vanilla. Stir until smooth, but do not over-beat.

Beat the egg whites until frothy. Add the cream of tartar and beat until soft peaks form. Gently fold the beaten whites into the orange batter. Fill the sprayed molds nearly to the top with the batter.

Bake approximately 25 minutes, until the cakes bounce back when lightly pressed with your fingertip. Do not over-bake. Remove from the oven and let cool on a wire rack. When completely cool, remove the cakes from the molds. Cover the cakes to keep them moist.

To prepare the glaze:

Chop the chocolate into small pieces. Place the butter in a saucepan and heat until it is just about to bubble. Remove from the heat; add the chocolate and stir to melt. Pour through a strainer and keep warm.

To assemble:

Cut a thin slice from the top of each cake to create a flat surface. Place a cake flat-side down on top of each custard. Cover the tops with warm chocolate glaze. Serve immediately.

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The final verdict: Very yummy, Very Rich – a special occasion dessert!

Take some time and check out what the other Daring Bakers did with this recipe by clicking on the link.

Enjoy!

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