Mongers' Provisions Olive Oil Cake

150g White Sugar 3g Baking Soda 2g Baking Powder 1g Diamond Crystal 2t Lemon Zest 175g Extra Virgin Olive Oil (Mahjoub) 110g Buttermilk 1 LargeEgg 165g Cake Flour 60g Marmelade 1. Preheat oven to 325°F. Use 9 Inch cake pan and place lightly greased parchment paper in bottom of pan 2. Using stand mixer, whisk sugar, baking soda, baking powder and salt together for about 2 minutes 3. Add lemon zest, EVOO, buttermilk, egg and marmalade. Whisk vigorously until smooth and well emulsified. 4. Sift flour into a separate bowl and then slowly add into the mixer set on medium speed until smooth and well combined. Scrape into the prepared pan. Bake for about 30 minutes, or until the cake is firm but your finger can still leave an impression in the puffy crust