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Walnut Cookies aka Oreshki

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Walnut Cookies, also known as Oreshki, are traditional Eastern European sandwich cookies shaped like walnuts and filled with a rich caramel cream made from dulce de leche and butter. These crisp cookie shells with a creamy filling are a classic holiday treat, perfect for celebrations, dessert platters, and homemade gift boxes.

Ingredients

For the Cookie Dough

  • 2 eggs

  • ½ cup granulated sugar

  • ½ cup unsalted butter, softened

  • 2 tablespoons mayonnaise

  • 2 ½ cups all-purpose flour

  • ½ teaspoon baking soda

  • 1 teaspoon vinegar

  • ¼ teaspoon salt

For the Filling

  • 1 can (14 oz) sweetened condensed milk, caramelized (dulce de leche)

  • ½ cup unsalted butter, softened

  • ½ cup walnuts, finely chopped (optional)

Instructions

  • In a large bowl, whisk together the eggs and granulated sugar until smooth and slightly thickened.

  • Add the softened butter and mayonnaise, mixing until creamy and well combined.

  • In a small bowl, mix the baking soda with vinegar to activate it, then stir it into the dough mixture.

  • Add the salt and gradually mix in the flour until a soft dough forms. The dough should be smooth and slightly firm.

  • Preheat a walnut cookie mold or oreshki pan according to the manufacturer’s instructions.

  • Roll small portions of dough into balls and place them into the cavities of the mold. Close the mold and cook until the shells are lightly golden.

  • Carefully remove the cookie shells from the mold and trim excess edges if needed. Allow them to cool completely.

  • In a bowl, beat the caramelized condensed milk and softened butter until smooth and creamy.

  • Stir in the finely chopped walnuts if using.

  • Fill each cookie shell with the cream filling.

  • Press two halves together to form walnut-shaped sandwich cookies.

Notes

Dulce de leche can be made by slowly cooking sweetened condensed milk until caramelized.Save trimmed cookie crumbs and mix them into the filling for extra texture.The cookies often taste even better after 24 hours as the shells soften slightly.A traditional oreshki pan is required to achieve the walnut shell shape.