Ptichye Moloko - Russian Birds Milk Cake

Bird's milk candy is a delightfully spongy, marshmallowy, candy bar enjoyed in Eastern Europe, though originally from Poland. This popular cake is modeled of the candy bar. It is believed in Russian legend that birds milk is such an exotic and rare ingredient that it is impossible to find, similar in idea to the Greek ambrosia, the food of the gods.

Indeed, in Soviet era Russian when the candy was invented, the originally cake was only made in the capitol. The cake was so hard to get a hold of because the recipe was such a closely guarded secret. Many kitchens in Russia tried to recreate the prized dessert and so there are many, many versions of the recipe floating around. I created this recipe after much tweaking each time to resemble the candy version in both taste and texture and I'm thrilled to finally be posting it. For two reasons really, the main one being that I finally perfected the recipe but also so I can stop making it, too much of a good thing and all that.

3 eggs, separated
1/2 c. sugar
1/2 c. flour
1/8 baking soda
pinch salt

2 c. sour cream
1/2 c. sweetened condensed milk
3/4 c. sugar
1/2 c. heavy cream
1/4 c. water
3 plain gelatin powder packets
1 tsp. vanilla extract
1 stick butter, softened

12 oz dark chocolate
3/4 c. Heavy cream

For the cake
Pre-heat the oven to 375 

Use a 9" spring-form pan, cut a circle of parchment paper to fit in the bottom. Butter and flour the bottom and an inch up the sides. Place in the fridge while you prepare the batter.

In a bowl beat the egg yolks and 1/4 cup sugar until pale in color and thick. Sift the flour and salt over the top and fold in. 

In a mixer beat the egg whites until starting to starting to grow. Keep beating until soft peaks form. Keep beating while very slowly drizzling in the remaining sugar. Keep beating until still peaks form. Add half of the egg whites to the flour mixture and gently fold in. Add the remaining whites and finish folding. 

Pour the mixture in to a prepared pan and place in the oven. Cook for 15 minutes or until the top is springy but not browned. 

Remove from the oven and allow to cool enough to touch. Remove from the pan and remove the parchment paper. Cut in half lengthwise and allow to cool completely. 

For the Bird's Milk Filling
Combine the water and gelatin and set aside for 5 minutes. Cook over medium heat for 3 minutes until the gelatin is dissolved. Set aside again to cool.

Beat the butter and sweetened condensed milk until light. Fold in the vanilla and sour cream. 

Whip the heavy cream and sugar until stiff peaks form, about as much as you can beat it without making butter. 

Fold the whipped cream in to the sour cream mixture. Drizzle the cooled gelatin over the top and fold in as fast as you can. 
Place the bottom later of the sponge cake in the bottom of the spring-form pan. Pour all the filling mixture in to the pan and spread to smooth to the edges. Top with the remaining cake layer and press gently in to the top. 

Chill for 8 hours or until firm. Remove from the fridge and run a knife around the edges to loosen. Remove the sides but not the bottom and place on a cooling rack inside a cookie sheet.  

Pour the ganache over the top and make sure the sides are coated. Place back in the fridge for 30 minutes to set the chocolate. 

Ganache layer
Combine the chocolate and heavy cream in a small metal bowl. Place over a pot of boiling water and cook over medium heat until the chocolate is melted and combined thoroughly with the cream. Remove the metal bowl from the boiling water and wipe the bottom of the bowl to remove and water. 


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