Upside-down cake

Upside Down Walnut Cake with Plum Jam

If you are looking for a recipe that perfectly combines sweetness with acidity, this upside-down walnut cake with plum jam will surely become your favorite. With a tender crust and a fluffy filling, it is ideal for any occasion, from parties to a simple family snack. Moreover, it is a simple recipe that is easy to prepare and does not require sophisticated ingredients.

Preparation time: 20 minutes
Baking time: 40 minutes
Total time: 1 hour
Number of servings: 12

Necessary ingredients:

For the crust:
- 400 g flour
- 100 g butter (at room temperature)
- 100 g powdered sugar
- 1 egg
- 1 packet baking powder
- 4 tablespoons sour cream
- 200 g plum jam (preferably tart)

For the filling:
- 300 g ground walnuts
- 8 eggs (separated into whites and yolks)
- 200 g granulated sugar
- 1 packet vanilla sugar or a drop of vanilla essence

Preparation:

1. Preparing the crust:
Start by preparing the crust for the cake. In a large bowl, combine the flour with the diced butter. Use your fingers to rub the butter into the flour until you achieve a texture similar to fine sand. This technique, known as "sablage," is essential for obtaining a tender crust.

2. Adding the ingredients:
Add the powdered sugar, baking powder, egg, and sour cream. Knead the dough well until all the ingredients are incorporated. Don’t hesitate to knead it vigorously; this will give you a homogeneous and elastic dough. Divide the dough into two equal parts and shape them into balls that you will roll out later.

3. Rolling out the crust:
On a floured surface, use a rolling pin to roll each ball of dough into a thin sheet. Make sure the sheets are the size of the baking tray you are using. I recommend using a tray of about 30x40 cm.

4. Assembling the cake:
Grease the tray with oil and dust it with flour to prevent sticking. Place the first sheet in the tray, then evenly spread the plum jam over it. The tart jam will contrast perfectly with the sweetness of the filling, creating a delicious balance.

5. Preparing the filling:
In a separate bowl, separate the egg whites from the yolks. Beat the egg whites with the sugar added gradually, spoon by spoon, until you achieve a firm and glossy foam. This step is essential for giving the cake an airy texture. Add the yolks, ground walnuts, and vanilla sugar, mixing with a spatula with gentle folding motions to avoid losing air from the mixture.

6. Finalizing the cake:
Pour the walnut mixture over the plum jam and cover with the second sheet of dough. To allow steam to escape during baking, pierce the dough sheet here and there with a fork. Bake the cake in a preheated oven at 180°C for about 40 minutes, or until the surface becomes slightly golden.

7. Cooling and serving:
After baking, let the cake cool in the tray. Then, cut it into squares and turn each piece over to bring the jam layer to the top. Dust with powdered sugar for an elegant look and an extra touch of sweetness.

Tips and tricks:
- Make sure all ingredients are at room temperature, especially the butter and eggs, to achieve a homogeneous dough.
- If you want to personalize the recipe, you can replace the plum jam with apricot jam or even a mix of berry jams.
- This cake pairs perfectly with a cup of tea or coffee, but also with a glass of cold milk for a mix of textures and flavors.

Nutritional benefits:
The upside-down walnut cake with plum jam is not only delicious but also quite nutritious. Walnuts provide a good source of healthy fats and proteins, while plum jam is rich in fiber, which can contribute to healthy digestion. However, like any dessert, it is important to consume it in moderation.

Frequently asked questions:
- Can I use other types of nuts? Absolutely! You can experiment with almonds or hazelnuts to vary the flavor.
- How can I store the cake? It keeps well in an airtight container for a few days at room temperature.
- Can it be frozen? Yes, you can freeze the cake, but it is recommended to portion it before placing it in the freezer.

In conclusion, this upside-down walnut cake with plum jam is not only easy to prepare but also full of flavor and culinary history. It is a recipe that can bring a touch of nostalgia and comfort to your table. So don't hesitate to try it and share it with your loved ones!

 Ingredients: FOR THE DOUGH: 400 g flour 100 g butter 100 g powdered sugar 1 egg 1 packet of baking powder 4 tablespoons sour cream 200 g plum jam FOR THE FILLING: 300 g ground walnuts 8 eggs 200 g granulated sugar 1 packet of vanilla sugar or a drop of vanilla essence

 Tags:  upside-down cake nut cake