Preheat the oven to 340°F (170°C), fan setting. Grease a 9x5-inch loaf pan with a light coat of oil or nonstick spray.
Whisk the eggs and sugars in a large mixing bowl until smooth and slightly frothy.
Add the wet ingredients—oil and orange juice—and whisk to combine.
Incorporate the dry ingredients—flour, baking powder, and maple syrup—mixing just until the batter is smooth and no dry streaks remain. Avoid overmixing.
Pour the batter into the prepared pan. Sprinkle the chopped walnuts evenly over the top.
Bake for 25 minutes, or until a toothpick inserted in the center comes out clean.
Cool completely in the pan on a wire rack. For extra indulgence, drizzle with additional maple syrup before serving. Slice and enjoy!
RECIPE NOTES
This cake pairs beautifully with a cup of tea or coffee. It also keeps well for up to three days at room temperature, wrapped in plastic or stored in an airtight container.