01 -
Preheat the oven to 175°C (350°F). Grease and flour a 23 cm (9-inch) round cake pan or line with parchment paper.
02 -
In a large bowl, combine black sesame paste and granulated sugar until well blended. Beat in eggs one at a time, ensuring each is fully incorporated. Stir in vegetable oil, buttermilk, and vanilla extract until smooth. In a separate bowl, whisk together flour, baking powder, baking soda, and salt. Gradually fold dry ingredients into wet ingredients until just combined.
03 -
In another bowl, cream together softened butter and granulated sugar until light and fluffy. Beat in eggs one at a time, mixing well after each addition. Stir in buttermilk and vanilla extract. In a separate bowl, combine flour, baking powder, baking soda, and salt. Gradually add dry ingredients to wet ingredients, mixing until just combined.
04 -
Spoon alternating dollops of black sesame batter and vanilla batter into the prepared cake pan. Use a spatula or knife to create gentle swirls in the batter, being careful not to overmix.
05 -
Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean.
06 -
Allow cake to cool in the pan for 10 minutes before transferring to a wire rack to cool completely. Once cooled, sprinkle the top with black sesame seeds for a crunchy garnish.
07 -
Slice and serve plain or with a dollop of whipped cream for an enhanced flavor experience.