Whisk eggs and sugar. In a mixing bowl, beat the eggs with sugar using an electric mixer until the mixture turns light and airy.
Incorporate oil. Gradually add the vegetable oil, blending until smooth and well combined.
Prepare dry mix. In another bowl, stir together the flour, baking soda, baking powder, and salt.
Sift dry ingredients. Sift the dry mixture into a large bowl to ensure a fluffy texture and avoid lumps.
Blend batter. Mix the sifted ingredients with the egg mixture on low speed until the batter is evenly combined and smooth.
Add durian. Gently fold the sliced durian flesh into the batter.
Fill the pan. Pour the batter into a loaf pan lined with parchment paper, topping with extra durian slices if you like.
Bake. Bake in a preheated oven at 350°F (175°C) for 45–55 minutes, or until a toothpick inserted in the middle comes out clean.