Description
This decadent High Altitude Chocolate Pistachio Cake is a rich and moist chocolate cake layered and frosted with a velvety cocoa buttercream. Enhanced with crunchy salted pistachios both inside the batter and as a garnish, this cake offers a perfect balance of deep chocolate flavor and nutty texture. Ideal for special occasions, it yields a tender crumb and a luscious finish that highlights the nutty saltiness of pistachios complemented by the smooth cocoa frosting.
Ingredients
Cake
- 2 cups all-purpose flour, (fluffed, spooned and leveled)
- 1 3/4 cups granulated sugar
- 3/4 cup unsweetened, Dutch-processed cocoa powder
- 1 tsp baking soda
- 1/2 tsp baking powder
- 1 tsp coarse Kosher salt (if using table salt, use half the amount)
- 1/2 cup shelled salted pistachios, finely chopped
- 4 large eggs, room temperature
- 1 cup whole milk, room temperature
- 1 cup sour cream, room temperature
- 1 cup vegetable oil
- 1 tbsp vanilla extract
Buttercream Frosting
- 2 cups unsalted butter, softened to room temperature
- 3 cups powdered sugar
- 1 cup unsweetened, Dutch-processed cocoa powder, sifted to break up lumps
- 1 tbsp meringue powder (optional)
- 1/4 tsp coarse Kosher salt (if using table salt, use half the amount)
- 2 tsp vanilla extract
- 2-4 tbsp milk, if needed
- 1/2 cup shelled salted pistachios, finely chopped (for garnish)
Instructions
- Preheat Oven: Preheat the oven to 350°F and position an oven rack in the center. Lightly spray the bottoms of two or three 8-inch round cake pans with non-stick baking spray. For half the recipe, use two or three 6-inch pans.
- Prepare Nuts & Dry Ingredients: Finely chop the pistachios using a small food processor. In a large bowl, whisk together the flour, sugar, cocoa powder, baking soda, baking powder, salt, and chopped pistachios until well combined.
- Mix Wet Ingredients: In a separate bowl, whisk together the eggs, whole milk, sour cream, vegetable oil, and vanilla extract until fully incorporated.
- Combine Wet and Dry: Pour the wet ingredients into the dry ingredients and whisk together for about 15 seconds, just until combined with no large lumps remaining.
- Divide and Bake: Evenly divide the batter between the prepared pans. Bake on the center oven rack for 22-28 minutes if using three pans, or 28-32 minutes if using two pans. The cakes are done when the tops spring back when lightly touched or a toothpick inserted into the center comes out clean.
- Cool Cakes: Place the pans on a wire rack and cover loosely with a kitchen towel. Let the cakes cool completely in the pans before frosting to avoid melting the buttercream.
- Prepare Buttercream – Beat Butter: Using a stand mixer fitted with the whisk attachment, beat the softened butter on medium speed for 1 minute until smooth and creamy.
- Add Dry Ingredients to Butter: On low speed, gradually add the powdered sugar, sifted cocoa powder, meringue powder (if using), and salt, mixing to combine evenly.
- Flavor and Whip: Add the vanilla extract and increase the mixer speed to medium. Whip the frosting for 4-5 minutes until very light, fluffy, and pale, scraping down the bowl occasionally. Add milk 1 tablespoon at a time only if needed to reach desired consistency.
- Remove Air Bubbles: Lower the mixer to the lowest speed (stir setting) and mix for 2 minutes to remove large air pockets from the buttercream.
- Assemble Cake: Remove cooled cakes from pans. Place one layer on a cake board and spread a layer of buttercream evenly on top. Sprinkle chopped pistachios over the buttercream. Repeat with remaining layers and frost the entire outside of the cake with the remaining buttercream.
- Decorate: Press chopped pistachios all over the sides and top of the frosted cake for garnish. Optionally, use a piping bag fitted with tip 1M to pipe swirls of buttercream on top. Decorate further with chocolate macarons if desired.
Notes
- Make sure all wet ingredients are at room temperature for best mixing and texture.
- If you only have table salt, reduce the salt quantity by half to prevent over-salting.
- Use Dutch-processed cocoa powder for a smoother, richer chocolate flavor.
- Ensure cakes are completely cool before frosting to prevent melting the buttercream.
- Chopped pistachios add a delightful crunch and saltiness, enhancing the chocolate flavor.
- Meringue powder is optional but helps stabilize the buttercream for longer-lasting frosting.
- For high altitude baking adjustments, proper measuring and mixing as indicated helps achieve a moist crumb.
- Prep Time: 15 minutes
- Cook Time: 28 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American