This cake is delicious and healthy because it contains blackberries, vanilla, and hazelnuts, all of which have health benefits. Blackberries are rich in antioxidants that protect the body from diseases, fight free radicals, and slow down the aging process. Vanilla helps improve mood and reduce stress. Hazelnuts are a rich source of healthy fats and fiber, which help promote satiety, and are also rich in vitamins and minerals, such as vitamin E and magnesium, which contribute to skin, hair, and heart health. Here are the simple steps to prepare it.

Ingredients:

For the base:

• 250 grams flour
• 125 grams cold butter
• 100 grams powdered sugar
• 1 egg
• A pinch of salt

For the filling:

• 500 grams fresh blackberries
• 200 grams sugar
• 2 tablespoons cornstarch
• 1 teaspoon vanilla extract
• 500 ml heavy cream
• 200 grams cream cheese
• 3 eggs
• 100 grams powdered sugar

For the crumble topping:

• 100 grams flour
• 50 grams cold butter
• 50 grams sugar
• 50 grams chopped hazelnuts

Substitutes for ingredients:

• Flour: You can use rice flour or almond flour as a substitute for white flour to give the cake higher nutritional value and a different taste.
• Butter: Butter can be replaced with peanut butter or coconut oil for a different flavor.
• Milk: Almond milk or coconut milk can be used instead of cow's milk to give the cake a richer taste.
• Cream cheese: You can use fat-free cream cheese or almond butter instead of traditional cream cheese.

Benefits of the Ingredients:

Blackberries:

• Rich in antioxidants that help protect the body from chronic diseases.
• High in Vitamin C, which aids the body in absorbing iron from plant-based foods, reducing the risk of anemia. It also plays a vital role in strengthening the immune system, protecting the body from diseases and infections, especially colds and the flu, and helps maintain skin freshness and vitality, protecting it from UV damage. Additionally, it contributes to bone and dental health and reduces the risk of arthritis.
• Helps improve memory and cognitive functions, reducing the risk of diseases like Alzheimer's.
• Contains compounds that help protect the eyes from blue light and reduce the risk of macular degeneration.
• The fiber in blackberries helps regulate bowel movements and improve digestion.

Vanilla:

• Contains antioxidant and anti-inflammatory compounds, and it helps improve mood and reduce stress.
• Some studies suggest that vanilla compounds may have anti-cancer properties.
• Helps combat certain harmful bacteria.
• Effective in fighting some types of fungi.

Hazelnuts:

• Rich in healthy fats, fiber, and protein, and also a good source of Vitamin E and antioxidants.
• Helps lower harmful cholesterol and increase good cholesterol, protecting the heart.
• Contains minerals like magnesium and copper, which play important roles in bone health.
• Helps maintain skin moisture and protect it from damage.

Eggs:

• Contain various B vitamins, such as B12, riboflavin (B2), and niacin (B3), especially in the yolk. These vitamins help in energy production, improving mood, supporting the nervous system, and enhancing brain function.
• Contain important minerals like iron and zinc found in the egg yolk. Iron helps in the production of red blood cells, improving the body’s ability to transport oxygen to muscles and tissues, while zinc supports skin and hair health, boosts the immune system, and contributes to cell growth.
• The protein in eggs is essential for muscle growth and repair, particularly after exercise.
• Contain lutein and zeaxanthin, antioxidants that help protect the eyes.
• The protein, vitamins, and minerals in eggs contribute to healthy and strong hair.

Method:

1. Prepare the base:
   • In a large bowl, mix the flour with the salt. Add the cold butter and cut it until the mixture resembles breadcrumbs.
   • Add the powdered sugar and mix well. Then, add the egg and mix the ingredients until a smooth dough forms.
   • Cover the dough with plastic wrap and refrigerate it for 30 minutes to chill.
2. Bake the base:
   • Preheat the oven to 180°C (350°F). Roll out the dough on a floured surface, then place it in a 22 cm round baking pan and gently press it down. Use a fork to make small holes in the base to prevent it from puffing up while baking.
   • Bake the base in the oven for 15 minutes, or until it turns golden. Let it cool slightly before adding the filling.
3. Prepare the filling:
   • In a medium saucepan, mix the blackberries with sugar and cornstarch. Leave the mixture on the heat until it thickens, then add the vanilla extract and let it cool.
   • In a large bowl, whisk the whipping cream until stiff peaks form.
   • In another bowl, mix the cream cheese with powdered sugar and eggs until smooth. Add the whipped cream and mix until well combined.
4. Prepare the cake crumbs:
   • In a bowl, mix the flour with sugar and butter until you get a sandy mixture resembling crumbs. Add the chopped hazelnuts and mix well.
5. Assemble the dessert:
   • Pour the blackberry mixture over the baked base and spread it evenly.
   • Add the vanilla cream mixture on top of the blackberries, then sprinkle the cake crumbs evenly over the surface.
   • Bake the dessert in the oven for 25-30 minutes, or until the cake crumbs turn golden and the cream sets. Let the dessert cool completely before serving.
6. Garnish:
   • Before serving, garnish the dessert with fresh raspberries and a light dusting of powdered sugar for added shine and beauty.

This dessert, made with blackberries, vanilla, and hazelnuts, is a great choice for any occasion or family gathering. The multiple flavors in this recipe provide a unique and unforgettable culinary experience, with a touch of elegance and deliciousness that pleases all tastes. Enjoy making this wonderful dessert and share it with your loved ones!

Note: This recipe is perfect for those who love desserts that combine rich flavors and crunchy textures, but it may not be suitable for those with nut or dairy allergies, or those following a sugar-free diet.

Calories and Nutritional Values for Each Ingredient:

1. Base:

   • 250g flour: About 875 calories, 24g protein, 184g carbs, 2g fat.
   • 125g butter: About 900 calories, 1g protein, 0g carbs, 100g fat.
   • 100g powdered sugar: About 400 calories, 0g protein, 100g carbs, 0g fat.
   • 1 egg: About 70 calories, 6g protein, 1g carbs, 5g fat.
   • Pinch of salt: Doesn't contribute significantly to calories.

   Total calories for the base: About 1,345 calories

2. Filling:

   • 500g blackberries: About 250 calories, 3g protein, 60g carbs, 2g fat.
   • 200g sugar: About 800 calories, 0g protein, 200g carbs, 0g fat.
   • 2 tbsp cornstarch: About 60 calories, 0g protein, 15g carbs, 0g fat.
   • 1 tsp vanilla extract: About 12 calories, 0g protein, 0g carbs, 0g fat.
   • 500ml heavy cream: About 1,800 calories, 5g protein, 8g carbs, 180g fat.
   • 200g cream cheese: About 600 calories, 8g protein, 6g carbs, 60g fat.
   • 3 eggs: About 210 calories, 18g protein, 3g carbs, 15g fat.
   • 100g powdered sugar: About 400 calories, 0g protein, 100g carbs, 0g fat.

   Total calories for the filling: About 3,592 calories

3. Crumble:

   • 100g flour: About 375 calories, 10g protein, 80g carbs, 1g fat.
   • 50g butter: About 360 calories, 0.5g protein, 0g carbs, 40g fat.
   • 50g sugar: About 200 calories, 0g protein, 50g carbs, 0g fat.
   • 50g chopped hazelnuts: About 300 calories, 6g protein, 10g carbs, 28g fat.

   Total calories for the crumble: About 1,235 calories

Total calories for the whole recipe:

• Base: 1,345 calories
• Filling: 3,592 calories
• Crumble: 1,235 calories

Approximate total: 6,172 calories

Note: You can divide this recipe into multiple servings, so be sure to calculate the calories per serving based on how many servings you offer.