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Lemon Mascarpone Cream Cake

My birthday cake of choice this year...which just might be repeated next year.  And the next.  And next.  I discovered the recipe (and many others that look incredible) at Not So Humble Pie.

 

Yellow Butter Cake

3 1/2 cups cake flour
2 cups sugar
1 tablespoon baking powder
1/2 teaspoon salt
1 cup (2 sticks) unsalted butter, diced, at room temperature
1 cup whole milk, divided
4 large eggs
2 large egg whites (reserve the yolks for the curd)
2 teaspoons vanilla extract

Tools:

parchment for the pans
Professional 3-inch high sided, 8" round pans. (The cake will rise well beyond the sides of short cake pans.)
Non-stick cooking spray

Preheat your oven to 350°F. Lightly coat your pans with cooking spray and line the bottoms with circles of parchment.

Cut your butter into small cubes while it still has a slight chill (it's easier to cut), and then allow to stand at room temperature  until it softens. It won't take long when the butter is diced.

In a bowl, lightly beat the eggs, egg whites, vanilla extract and half of the milk. Mix until more or less homogeneous and set aside.

In the bowl of your stand mixer, sift together the cake flour*, sugar, baking powder and salt.  (*Tip for measuring cake flour: Don't scoop.  Spoon the cake flour into your measuring cup, directly from the package, and then level your cup with the back of a knife.)

Fit the bowl into your stand mixer and equip the whisk attachment. Add the butter and remaining half cup of whole milk. Beat this mixture on medium speed until smooth (about 4 minutes), scraping down the bowl with a spatula as needed.

The mixture will start out a little rough and then turn pasty and thick.  Once beaten, add a third of the egg-milk mixture and mix for two minutes on medium speed. Add another third and beat on medium speed for two minutes, you'll notice the mixture beginning to increase in volume. Add the remaining third of the milk-egg mixture and beat on medium speed for two minutes.

Divide the batter between your two pans (it will be roughly 670 grams per pan).

Level the batter with an offset spatula and bake for 35-40 minutes. They will be done when the cake springs back slightly when lightly touched in the center. If you touch the cake and it feels under-baked, feel free to give it another 5 minutes in the oven to set. 

Remove from the oven and allow to cool completely in the pans on a wire wrack.  The cake should pull away from the sides as it cools. If it doesn't, slip a knife around the side to release. Once cool, remove the cake from the pan and peel off the layer of parchment.

Trim the tops of the cake with a sharp serrated knife.

 

Lemon Curd

1/2 cup unsalted butter
1/2 cup lemon juice
zest of one large lemon
3/4 cup granulated sugar
1 teaspoon cornstarch
pinch of salt
6 large egg yolks

Melt the butter in a medium sauce pan over medium-low heat.  Remove from heat and add the lemon juice and zest.

Mix together the sugar, salt and cornstarch and add it to the pan.  Whisk in the egg yolks until smooth and return to heat. Cook over medium-low heat for roughly 10 minutes until the mixture has thickened and coats the back of a spoon. Do not allow the mixture to boil.

Once thickened, strain the mixture though a fine mesh strainer into a large bowl. Allow to chill in the refrigerator completely before using.

Lemon Mascarpone Cream Frosting (so good!)

1 pound mascarpone cheese
5 ounces (2/3c) lemon curd
20 ounces (2 1/2c) heavy cream
3 ounces (7Tb) sugar

Beat the sugar and cream to soft peaks in your mixer.

Combine the mascarpone and lemon curd in a separate bowl and mix.

Add the cream to the mascarpone mixture. Gently fold to combine. If the mixture is overworked it can separate or look grainy. To fix this add several tablespoons of heavy cream and mix with the spatula until smooth again.  If you're baking karma is good, you can dump the mascarpone mixture into the cream and briefly beat with your stand mixer on medium low speed.

Now you're ready to assemble the cake.

Drop a dollop of the mascarpone frosting onto the cake and smooth to seal the top. Fill a piping bag with a large round opening with frosting and then pipe a boarder around the top of the cake. This will contain your lemon curd. Fill the center of the cake with roughly 1/3 cup of lemon curd. Then cover with a layer of frosting. The easiest way to cover slippery lemon curd with an even layer frosting is to use that same piping bag you made the boarder with. starting in the center of the lemon curd, pipe a tight spiral of frosting. Coil it tightly, around and around until you've reached the edge of the cake.

Gently place the second layer of cake on top.

Cover the cake with remaining frosting and decorate as desired.  I liked using the rest of the lemon curd on top.  Mighty tasty!

 

Posted on Tuesday, June 7, 2011 at 06:02PM by Registered CommenterAmy in , | Comments1 Comment | References4 References

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Reader Comments (1)

I wanted to see it's insides. I still laugh at mom and I making you that nasty lemon cake last year or the year before? I don't remember, but I'm glad you've found the lemon cake love for this year.

June 8, 2011 | Unregistered CommenterMegan

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