Dark Chocolate Olive Oil Cake

Name: Dark Chocolate Olive Oil Cake
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Cuisine: American
Ingredients: ¾ cup (180ml) extra-virgin olive oil, more for greasing the pan; ½ cup (70g) good-quality unsweetened cocoa powder; ½ cup (120ml) boiling water; 1 tablespoon pure vanilla extract; 1⅓ cups (165g) all-purpose flour; ½ teaspoon baking soda; 1 teaspoon sea salt; 1 cup (195g) super fine sugar; 3 large eggs; Cyprus flake salt (or flaky sea salt); ½ cup (120ml) heavy cream (I used whipped coconut cream); ½ teaspoon ground cardamom; 1 teaspoon dried rose petals (I skipped); ½ cup (65 g) chopped unsalted pistachios