Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat the oven to 350°F (175°C) and grease two 6- or 7-inch cake pans, then lightly flour them.
- In a small bowl, mix milk with apple cider vinegar and let sit for 5-10 minutes to create homemade buttermilk.
- In a food processor, blend ground pistachios and granulated sugar until fine.
- In a medium bowl, whisk the pistachio-sugar mixture with all-purpose flour, baking powder, and salt until well combined.
- In a large bowl, blend the buttermilk mixture, olive oil, and vanilla extract until smooth and creamy.
- Gently fold the dry mixture into the wet ingredients until combined, being careful not to overmix.
- Divide the batter into the prepared pans and bake for 25-30 minutes, or until a toothpick comes out clean.
- Cool the cakes in the pans for 10 minutes, then turn out onto a wire rack to cool completely.
- Prepare the frosting by beating butter and blackberry preserves until fluffy, then slowly add powdered sugar and thyme.
- Assemble the cake by frosting between layers and the outside, decorating with fresh blackberries and chopped pistachios.
Nutrition
Notes
For best results, ensure all ingredients are at room temperature. Avoid overmixing to retain a light, fluffy texture. Chill cake layers before frosting for optimal flavor and ease of slicing.
