Preheat the
oven to 325°F/170°C/gas
3.
Butter an 11
x 7-inch (28 x 18-cm) baking pan. Line with
parchment paper, letting the edges overhang.
Sift the
flour, cinnamon, cloves, cardamom, and salt into
a large bowl. Bring the dark raisins, golden
raisins, and rum mixture to a boil in a large
saucepan.
Remove from
the heat and set aside for 15 minutes to allow
the raisins to soak up the liquid. Mix the
raisin mixture, cherries, walnuts, and almonds
in a large bowl.
Use a large
rubber spatula to fold in 1 tablespoon of the
dry ingredients and stir until well coated.
Melt the chocolate in a double boiler over
barely simmering water.
Beat the butter and brown sugar in a large bowl
with an electric mixer at high speed until
creamy.
Add the orange zest and melted chocolate. Add
the eggs, beating until just blended, adding 1
tablespoon of the dry ingredients.
Use a large rubber spatula to fold in the
remaining dry ingredients, followed by the
raisin mixture and orange juice.Spoon the
batter into the prepared pan, smoothing the top.
Bake for
60-75
minutes, or until a toothpick inserted into the
center comes out clean. Cool completely before
cutting into squares.