01 -
Preheat oven to 175°C. Grease a 23x23 cm baking pan or line with parchment paper for easy removal.
02 -
Combine brown sugar, 315 ml water, oil, molasses, raisins, salt, cinnamon, cloves, nutmeg, and ginger in a saucepan. Heat over medium-high until boiling, then simmer for one minute. Remove from heat.
03 -
In a separate bowl, whisk together flour and baking powder, breaking up any lumps. Set aside.
04 -
In a small cup, mix 2 teaspoons water with baking soda until fully dissolved. Stir this mixture into the warm raisin mixture; allow foaming to subside.
05 -
Pour the raisin mixture into the flour mixture and stir gently until just combined. Do not overmix.
06 -
Pour batter into the prepared pan. Bake for 40–45 minutes, or until a toothpick inserted in the centre comes out clean.
07 -
Cool completely in the pan. Cut into squares and serve, or store at room temperature in an airtight container.