This Spiced Walnut Cake is perfectly flavored with cinnamon, nutmeg, ginger, and walnuts. Easily decorate it semi-naked with brown butter cream cheese frosting!
Place the butter in a pan over low-medium heat. Stir until the brown bits form on the bottom and it releases a nutty aroma.
Transfer to a heatproof container and let it cool to room temperature while making the cake layers.
Making the Cakes
Preheat oven to 350°F. Spray three 6-inch round cake pans with baking spray and line the bottoms with round sheets of parchment paper.
In a medium bowl, whisk together the flour, baking soda, baking powder, salt, and spices.
In a large bowl, cream together the softened butter and sugar until light and creamy (about 3 minutes). Stir in the eggs, vanilla, and sour cream.
Gradually mix ½ of the dry ingredients into the wet ingredients, followed by ½ of the kefir. Repeat just until all of the dry ingredients and kefir are incorporated into the batter.
Fold in the walnuts. Be careful not to over-mix - stop stirring as soon as everything is combined.
Evenly distribute the cake batter into the 3 prepared cake pans and smooth the tops out as much as possible with a spatula.
Bake all 3 cakes on the oven's middle rack for 20-30 minutes.You may want to rotate the pans halfway through if they aren't baking evenly. They're done when the tops are light brown and a toothpick inserted into the middle comes out clean.
Let the cakes cool in the pans for about 10 minutes and then carefully flip them out of the pans, peel off the parchment paper, and set them on a wire rack to finish cooling.
Once cooled completely, wrap each cake separately in plastic wrap and set them in the freezer for at least 1 hour before frosting.
Cream Cheese Frosting
Mix the cream cheese in a large bowl until smooth. Stir in the cooled brown butter, vanilla extract, and powdered sugar and mix very well.
Assembling the Cake
Place 1 cake layer on a turntable or plate and spread ¼-½ inch of frosting on top. Add chopped walnuts if you'd like. Then stack the next layer and repeat.
Spread frosting on the sides to fill the gaps between the cake layers. Then, spread more frosting along the sides & top and use a cake scraper or offset spatula to smooth it out. Decorate with walnuts and enjoy!
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Notes
Storage: Store in the refrigerator for up to 1 week, or freeze individually wrapped slices for up to 1 month.Note: This recipe is sponsored by Lifeway Foods. All opinions are my own and I genuinely love their kefir and mission! If you need to substitute the kefir, you can use buttermilk in its place.