Walnut Cake Agnes (Agnesa)- From my Mom’s Old Notebook

This walnut cake Agnes has a very special place in my heart. When my mom married my dad, she didn’t know how to cook. She collected handwritten recipes from friends and neighbors in a little notebook. After she passed away, I found that notebook, and it is the only thing I have left from her. As I flipped through the worn pages, I saw my favorite childhood dessert inside—the Agnesa cake. I made it right away and knew I had to film and share it.

This walnut cake is unlike any other dessert. It has a rich, fudgy base made with ground walnuts, butter, and egg whites. The top is covered with an egg yolk glaze that dries to a delicate crust while staying creamy in the middle. It is sweet but not overpowering, with a texture that is both soft and slightly crunchy. Even though this cake contains two cups of sugar, it tastes surprisingly light.

Equipment

Measuring spoons and cups – they are essential for any baking recipe.
Food processor or a small blender – I used a small blender to grind the walnuts finely.
Hand or stand mixer – it is needed to prepare the cake batter and the egg yolk glaze.
Mixing bowls – I needed 3 different bowls. One to mix the batter, one for the egg whites and one for the egg yolks.
Spatula or a wooden spoon – to incorporate the flour and fold in the egg whites in the batter.
Baking dish – mine was 10.5″ x 7.5″
Parchment paper – I used an airfryer liner paper, because it fit my baking dish perfectly.

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Helpful Tips for Making Walnut Cake Agnes

Grind the walnuts finely – Use a food processor, nut grinder, or smoothie maker. The finer the walnuts, the smoother the texture of the cake.
Use room-temperature butter – The butter should be very soft and easy to mix.
Use a dry and clean bowl for the egg whites – Even a little moisture or grease can prevent the egg whites from whipping to stiff peaks.
Beat egg whites to stiff peaks – Don’t stop at soft peaks. Properly aerated egg whites are what make the texture light.
Mix the flour with a spatula – Do not use a mixer when adding the flour. Overmixing can make the cake dense and tough.
Fold the egg whites gently – Add them in batches and fold slowly to avoid deflating the batter.
Prepare the egg yolk glaze at the end of baking – Make the glaze during the last 5 minutes of baking. If you mix the yolks and sugar too early, the mixture may crust or dry out before you spread it.
Spread the glaze on the hot cake – This helps it set properly and creates that crunchy top with a creamy center.
Dry the glaze with the oven slightly open – After turning off the oven, return the cake inside for about 10 minutes. Keep the door ajar with a towel or wooden spoon so the glaze dries without overbaking the base.
Chill the cake before slicing – Refrigerate it for at least 1 hour (or longer). This helps the glaze set and makes cleaner slices.
Use a sharp knife for cutting – The glaze has a delicate crust, so a clean, sharp knife will give neater pieces.
Line the baking dish with parchment paper – This makes it easy to lift the entire cake out and slice it on a board.

Serving Suggestions

Walnut Cake Agnes is best served chilled. After the cake has cooled completely, refrigerate it for at least one hour before slicing. The glaze sets beautifully in the fridge, making the top slightly crunchy while the middle stays creamy. Use a sharp knife to cut clean squares or diamonds. This dessert pairs perfectly with coffee, tea, or an afternoon espresso, just like we enjoyed it growing up.

For the best texture and flavor, serve it straight from the refrigerator or let it sit at room temperature for no more than 10–15 minutes before eating.

How to Store Agnesa Cake

This dessert must be stored in the refrigerator at all times. Because of the egg yolk glaze and buttery base, it is not safe to leave it at room temperature for long.

Refrigerator:
Store the cake covered or in an airtight container. It keeps well in the fridge for up to 5 days. The texture actually improves after the first day as the flavors settle and the glaze firms up.
Countertop:
Do not leave the cake at room temperature for more than 2 hours. After that, it should go back in the fridge to prevent spoilage.
Freezing (optional):
If you want to freeze it, slice the cake first and wrap each piece tightly in plastic wrap, then place in a freezer-safe container. Thaw in the refrigerator overnight before serving.

Final Thoughts

Walnut Cake Agnes is more than just a dessert—it’s a piece of my childhood and a recipe that survived through handwritten notes and memories. I hope you enjoy this unique cake as much as my family always has. If you try it, I would love to hear how it turned out for you!

Print Recipe

Walnut Cake Agnes

Prep Time30

Cook Time30

Total Time1

Course: Dessert

Keyword: butter, Eggs, walnuts

Servings: 12

Equipment

Hand or stand mixer, food processor

Ingredients

1 cup raw walnut halves ground
1 cup 8 oz unsalted butter softened
1 cup granulated sugar
4 large eggs divided
1 cup all purpose flour
1 cup powdered sugar
1 tsp vanilla extract

Instructions

Preheat your oven to 355°F (180°C).
Line or grease the bottom of a baking dish (mine was 10.5" x 7.5").
Add the walnut halves in a blender or a food processor. Grind them finely.

To prepare the cake batter

In a mixing bowl, beat the softened butter and granulated sugar until the sugar dissolves and the mixture is light and creamy.
Add the ground walnuts to the butter-sugar mixture and mix again.
Add the flour to the same boul. Use a spatula or a wooden spoon to incorporate the flour. Do not overmix.
Seperate the eggs to egg whites and egg yolks in two separate clean and dry bowls.
Beat the 4 egg whites to stiff peaks.
Gently fold the beaten egg whites into the walnut mixture in batches, being careful not to deflate them.
Spread the batter evenly into the prepared baking dish.
Bake for about 20–25 minutes, or until set and lightly golden.

Make the Glaze

In a bowl, whisk together: 4 egg yolks, 1 cup powdered sugar and a teaspoon of vanilla. Mix until smooth and creamy.
When the cake base is baked, remove it from the oven.
Spread the egg yolk glaze evenly over the hot cake.
Turn off the oven.
Return the cake to the warm oven for about 10 minutes.
Keep the oven door slightly open by placing a towel or wooden spoon in the gap. This allows the glaze to dry on top while staying soft in the middle.
Remove the cake from the oven.
Let it cool fully, then refrigerate for at least an hour before slicing.
Once chilled, cut into squares or diamonds.
The glaze should be crisp on the surface and creamy inside.
Store leftover cake in the refrigerator for 4-5 days.