There’s something truly special about a cake that’s both nutty and fruity, moist but light. The Pistachio and Blackberry Olive Oil Cake Recipe is one of my go-to desserts for any time I want to impress without fuss. It’s perfect for afternoon tea, a casual dinner party, or even a weekend bake when you want something a little elegant and uniquely flavorful.
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Why You’ll Love This Pistachio and Blackberry Olive Oil Cake Recipe
I’m always amazed at how the olive oil keeps this cake so moist and tender while the pistachios add just the right crunch. The blackberry preserves burst with a bright freshness that lifts the whole flavor. Plus, it’s made with ingredients you probably have at home, making it a practical yet decadent choice for almost any occasion.
- Texture you want: A tender crumb with subtle crunch from toasted pistachios.
- Flavor that pops: Fruity blackberries balanced by warm almond and vanilla notes.
- Everyday ingredients: Nothing exotic, just smart combos like olive oil and homemade buttermilk.
- Works for any night: Simple to prep and bake ahead for stress-free entertaining.
Ingredient Spotlight
Each ingredient plays a key role in making your Pistachio and Blackberry Olive Oil Cake Recipe come alive. Here’s a quick look at the stars and some swaps that won’t compromise the flavor or texture.
- Olive Oil: Use a fruity extra virgin olive oil for moisture and rich complexity—avoid the bitter ones.
- Pistachios: Freshly shelled and lightly toasted give the best aroma and bite. You can grind them coarse or fine depending on your texture preference.
- Blackberry Preserves: Choose a high-quality, all-fruit preserve with minimal added sugar to keep the fruity brightness front and center.
Seasonality & Sourcing
Blackberries shine brightest in late summer and early fall, so freshest berries and preserves at this time will elevate your cake’s flavor. If off-season, frozen berries can substitute for fresh garnish, while shelf-stable preserves still work well year-round. For pistachios, look for ones with a vibrant green color and no added salt or coatings—local markets often have fresher options than pre-packaged versions.
Step-by-Step: How to Make It
Step 1 — Prep & Preheat
Start by preheating your oven to 350°F (175°C). Grease two 6- or 7-inch round pans with butter, then dust them lightly with flour. I like to line the bottoms with parchment paper rounds as well—you’ll find it makes removing the cakes a breeze and keeps those edges neat. Avoid skipping this step; an unlined pan can cause sticking and wreck your perfect layers.
Step 2 — Cook & Build Flavor
Mix your milk with apple cider vinegar or lemon juice and let it rest 5 minutes to create your homemade buttermilk. Then pulse pistachios and sugar together until finely chopped but still with a touch of texture—you want to smell that fresh nutty fragrance. Whisk the dry ingredients and separately combine your wet ingredients including olive oil and extracts. Fold them gently to keep the batter airy. Pour evenly into pans and bake about 25 to 30 minutes until a toothpick comes out clean. If it’s a bit wet, bake a few minutes longer; if it dries out, check your oven temperature as it might be running hot.
Step 3 — Finish & Rest
Once out of the oven, let the cakes cool in their pans for about 15 minutes before transferring them to a wire rack. For best texture and flavor, wrap them tightly and refrigerate overnight. This rest really seals in moisture and firms up the crumb, making the cake layers easier to handle and the final slices look stunning. I usually bake mine a day ahead when I have time—it’s a game changer.
Troubleshooting Pistachio and Blackberry Olive Oil Cake Recipe
If your cake turns out dry, double check your oven temperature and don’t overbake—it should be just barely set. For a soggy cake, reduce the amount of preserves layered inside or ensure your buttercream isn’t too runny. If the flavor feels muted, a splash more almond extract or a pinch of salt in the batter can brighten everything up.
Pro Tips
From my own kitchen, here's what makes this Pistachio and Blackberry Olive Oil Cake Recipe shine: fresh-toasted pistachios and careful folding to keep things light.
- Heat control: Make sure your oven is fully preheated and use an oven thermometer if you can; too hot will dry the cake out.
- Timing window: Stick close to the 25–30-minute range, checking early to avoid overbaking.
- Make-ahead move: Chill your cake layers overnight for stronger flavor and easier frosting application.
- Avoid this pitfall: Don’t overmix the batter or you’ll lose that tender crumb and end up with a dense cake.
Variations & Substitutions
You can swap almond extract for orange blossom water for a floral twist, or trade blackberries for raspberries for a tart pop. Gluten-free flour blends work well if just substituted 1:1, and using coconut or almond milk keeps this dairy-free while still maintaining moistness thanks to the vinegar trick. Don’t hesitate to tweak preserves to your favorite berry!
Great Debates
Butter vs. olive oil in cakes is always a hot topic. I prefer olive oil here—it gives a moist texture and subtle fruity notes that butter can’t match. However, some folks swear by butter for richer flavor and denser crumb. If you want to experiment, try half oil and half butter for a middle ground.
Make-Ahead, Storage & Freezing
This Pistachio and Blackberry Olive Oil Cake Recipe keeps beautifully for up to 4 days in the fridge, tightly wrapped or covered with a cake dome to prevent drying out. You can also freeze the unfrosted layers wrapped well in plastic and foil for up to 2 months. Thaw them overnight in the fridge and bring to room temperature before frosting and serving for best texture.
Yield & Conversions
This recipe makes two 6- or 7-inch cake layers, perfect for about 8–10 servings. To double, simply multiply all ingredients by two and use a larger pan or bake in batches. For a smaller cake, half the ingredients and bake in a single 6-inch pan. Use 1 cup flour ≈ 120 grams for precise metric conversions.
Serving Ideas & Pairings
I love serving this cake with a dollop of lightly whipped cream or vanilla bean ice cream to balance the rich nutty flavors. Fresh blackberries and a sprinkle of chopped pistachios add a pretty, textural contrast. For an extra touch, drizzle some honey or a quick blackberry coulis on the side. It’s a crowd-pleaser with coffee or afternoon tea!
FAQs
Absolutely! Frozen blackberries work well for garnish or making preserves, just thaw and drain excess juice to avoid soggy cake layers.
You can, but the texture and flavor will be different—olive oil keeps the cake moist and adds subtle fruity notes, while butter yields a richer, denser crumb.
Cover it tightly and refrigerate for up to 4 days. Let the cake come to room temperature before serving for the best texture.
With a few swaps like plant-based milk, vegan butter, and flax eggs, you can make a version that’s vegan-friendly while still delicious.
Notes, Tools & Special Equipment
Use two 6- or 7-inch round cake pans for even layers. I rely on a food processor for grinding pistachios finely but not too much. A stand mixer or hand mixer makes the buttercream fluffy and smooth. If you have an oven thermometer, it’s worth using to avoid temperature mishaps. A serrated knife helps level the cake for neat layering.
PrintPrintable Recipe 📖
Pistachio and Blackberry Olive Oil Cake Recipe
This Pistachio and Blackberry Olive Oil Cake is a moist, flavorful dessert combining toasted pistachios, fresh blackberries, and fruity olive oil. The cake layers are tender with a subtle nutty crunch, complemented by a luscious salted blackberry and thyme buttercream frosting, making for a beautifully balanced cake perfect for any special occasion.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Total Time: 12 hours 50 minutes
- Yield: 10 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
Cake Batter
- ⅘ cup (110g) shelled pistachios
- 1 cup (220g) granulated sugar
- 2 cups (260g) all-purpose flour
- 2 ½ teaspoon (10g) baking powder
- ½ teaspoon (3g) salt
- 1 ⅕ cups (290ml) milk of choice
- 1 tablespoon (15g) apple cider vinegar or lemon juice
- ½ cup (120ml) olive oil
- 1 tablespoon (12g) vanilla extract
- 1 teaspoon (4g) almond extract
- Optional: all-natural green food dye
Buttercream Frosting
- 3 cups (360g) powdered sugar
- 1 ½ cups (339g) salted butter, at room temperature
- ⅓ cup (105g) blackberry preserves
- 1 ½ teaspoon (6g) vanilla extract
- 1 teaspoon (6g) salt
- ½ teaspoon (1g) dried thyme
Garnish
- Fresh blackberries
- Chopped pistachios
Instructions
- Preheat the Oven and Prepare Pans: Preheat your oven to 350F. Grease two 6- or 7-inch cake pans with butter, dust with flour, and line the bottoms with parchment paper rounds to ensure easy removal and clean edges.
- Create Your Homemade Buttermilk: Combine the milk with apple cider vinegar or lemon juice and let it sit for 5 minutes to create a tenderizing buttermilk substitute that helps keep the cake moist.
- Process the Pistachios and Sugar: Pulse the pistachios and granulated sugar in a food processor or blender until finely ground but with some texture remaining, infusing the batter with nutty flavor and crunch.
- Mix Dry Ingredients: In a medium bowl, whisk the ground pistachio-sugar mixture with flour, baking powder, and salt to evenly distribute all the dry ingredients and leavening agents.
- Combine Wet Ingredients: In a large bowl, whisk together the homemade buttermilk, olive oil, vanilla extract, and almond extract until fully blended. Add green food dye if desired for color.
- Bring It All Together: Gently fold the dry ingredients into the wet ingredients using a spatula or wooden spoon until just combined, taking care not to overmix to keep the batter light and airy.
- Bake the Cake Layers: Divide the batter evenly (about 425 grams each) between the prepared pans. Bake at 350F for 30 minutes or until a toothpick inserted comes out clean and the cake is golden with a nutty aroma.
- Cool and Chill the Layers: Allow the cakes to cool completely in the pans on a wire rack. Wrap tightly in plastic wrap and refrigerate overnight to develop flavor and firmness for easier assembly.
- Prepare the Salted Blackberry and Thyme Buttercream: Beat the room temperature butter with blackberry preserves until smooth. Gradually add powdered sugar and mix until incorporated. Stir in vanilla extract, salt, and dried thyme. Whip at high speed for 5 minutes until light, fluffy, and spreadable.
- Assemble the Cake: Level the top of one cake layer if needed. Place it cut side up on a cake stand. Spread a generous layer of buttercream followed by a spoonful of blackberry preserves in the center. Add the second layer and cover the entire cake with remaining buttercream. Garnish with fresh blackberries and chopped pistachios. Slice and serve.
Notes
- To toast pistachios before grinding, spread on a baking sheet and bake at 350F for 5-7 minutes to enhance their flavor.
- Use room temperature butter for frosting to ensure smooth and airy buttercream.
- If you don't have a food processor, finely chop pistachios and mix with sugar for a similar texture.
- The optional green food dye is for visual appeal only and can be omitted without affecting flavor.
- Letting the cake layers chill overnight improves slicing and flavor development.
- Ensure the cake layers are fully cooled before frosting to prevent melting.
- Substitute almond extract with extra vanilla extract if allergic to nuts.
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