The Bounce Rate In Berlin - Cafe Einstein - Apple Tart with Walnut Cream Filling
Thursday, January 3rd, 2008
Do you know what a bounce rate is? Neither did Penelope before she started this website, but apparently the bounce rate is the number of people who, as the song says, “Come and go in a big rush,” which was what was happening with Berlin’s visitors to Penelope Pies. Hundreds were clicking over every day but not staying long. Where were they going? Penelope needed to know. So, she scraped together all her unused miles and vacation time, and off she went to the City of Currywurst and Cabaret. And there, practically across the Unter den Linden from the grand and storied Hotel Adlon (where, by the way, Eva Braun lived out the war, and Penelope lived out her dream Teutonic vacation) she found her audience indulging in the irresistible treats at Cafe Einstein. If you happen to be in the neighborhood, try some of their famous Apple Tart with Walnut Cream Filling. Penelope especially recommends Cafe Einstein for breakfast, where the city’s bureaucratic elite eat (unless you’re okay with paying about $80 for the Hotel Adlon breakfast buffet). If you can’t get a flight over, try this recipe. The crust, like Cafe Einstein’s clientele, is rich and historically flaky.
Sweet Cookie Tart (Pate Sucre)
- 8 tbs unsalted butter
- ¼ cup sugar
- ⅛ tsp salt
- 1 large egg yolk
- 2 tbs heavy cream
- non-stick parchment paper
In a medium bowl, stir together the flour, sugar, and salt
Cut in the cold butter until the mixture resembles coarse meal
In a small bowl, stir together the yolk and cream
Mix it into the flour mixture until the dough comes together and forms into a ball
Flatten into a 6” disc
Refrigerate for 30 minutes and roll out
Bake for 10 to 12 minutes, remove from the oven and cool completely
The Filling
- 3 tart baking apples (Golden Delicious, Greening or Granny Smith)
- 2¼ cups water
- 1 tbs freshly squeezed lemon juice
- ¼ cup + 2 tbs sugar
- 1½ inches of vanilla bean, split and cut lengthwise
- ½ cinnamon stick
Poaching the Apples
Peel, halve and core the apples
In a skillet large enough to hold the apples in a single layer, combine the water, lemon juice, sugar, vanilla bean, and cinnamon stick, and stir to dissolve the sugar
Add the apples, rounded side down, and bring the liquid to a boil
Place a round of parchment on top of the apples
Simmer over low heat for 6 minutes
Turn the apples and continue simmering for 6 minutes more
The apples should be slightly firm
Remove the pan from the heat and cool, covered only by the parchment — about an hour
The apples can be used immediately, but they’re better if allowed to sit in the liquid for a day, or even up to 3 days.
The Walnut Cream
- 1 cup walnut halves, lightly toasted
- ½ cup sugar
- 2 tsp all-purpose flour
- ½ tsp ground cinnamon
- 7 tbs unsalted butter
- 2 large eggs
- ½ tsp pure vanilla extract
In a food processor fitting with the metal blade, place the walnuts, sugar, flour and cinnamon, and process until the walnuts are very fine
Empty the mixture into a bowl and set aside
In a medium bowl, beat the butter until creamy
Beat in about ½ cup of the nut mixture until incorporated
Beat in 1 egg along with another ½ cup of the nut mixture
Then beat in the second egg with the remaining nut mixture until incorporated
Beat in the vanilla
Refrigerate until about 10 minutes before assembling the tart
Putting it Together
Drain the apples well, rounded sides up, reserving the poaching luquid and vanilla bean
Discard the cinnamon stick
Slice each apple into thin slices, but not slicing all the way through to the bottom
Press gently on the top of each apple to fan the slices slightly
Spread the walnut cream evenly in the cooled baked tart shell
Lift each apple and position on top of the walnut cream
The Glaze
- ¾ cup reserved syrup from poaching
- 1 tsp cassava or arrowroot or cornstarch
Measure ¾ cup of the poaching syrup
Remove the vanilla bean and scrape the seeds into the syrup
In a small saucepan, reduce the liquid to ¼ cup
Cool to room temperature, then add the cassava root to the reduced poaching liquid
Stir constantly
Remove from the heat and pour the glaze into a small cup
Use a clean pastry brush to coat the apples well
Brush the remaining glaze onto the walnut filling
Unmold the tart and serve. The center should be slightly creamy


Not that Penelope is competitive about pie baking, because she’s not a professional baker or even a proficient enough amateur to steal a glance over the blue ribbon wall, but when her neighbor, Katherine, came over with a piece of the very first pie she had ever baked in her life, and the crust was beautifully golden and it tasted wonderful, Penelope had to admit to a certain degree of apple pie envy.
The whole thing about homemade pies is that they’re not perfect. The tops are supposed to be uneven. The fluting on the crust doesn’t have to have all the same angles. The steam vents are supposed to be different lengths.“That’s why,” Melissa Howell from Washington State, told Penelope, “I dislike the stamps for dough designs or perfect crust vents. Whenever I would bake with my (then) teenage daughter and she’d fuss with fancy vent designs, I would say, ‘They’re not socks. They don’t have to match.’ And usually she would just shrug and go with it. “Now, I don’t know if it was just adolescence, but one day she brought home one of those kitschy bluebird pie stamps. I was just about to give her my usual speech when she turned to me and practically shouted, “Mom, did it ever occur to you that some people might like a well-designed, perfectly matched, beautifully even pie crust! Maybe you’re too old or too, I don’t know, disappointed with life to even hope for it anymore, but is perfection too much to expect! ”Apparently steam vents also come in different ages.
On a busy (but scenic and perfectly art directed) October afternoon in the French countryside, in the kitchen of her Loire Valley inn, one of the Tatin sisters had prepared her usual (and fabulous) apple pie, put it in the oven, dusted off her hands on her pique apron, and was just about out of the kitchen when she noticed the pie crust was still on the table. Sacre bleu! But the quick thinking Tatin mademoiselle just gathered up the dough, pulled the pie pan out of the oven, fashioned the pastry on top of the fruit mixture, and put it all back in to bake. When it was done, she bravely flipped everything out of the pan, thereby creating an apple upside-down tart out of the apple pie, which became the eponymous Tarte Tatin. The guests were delighted and the sisters were thrilled. Although the issue of royalties still rankles.





