About this recipe:As sweet as cakes can get! Kids will especially love this chocolaty cake, perfect for birthdays. The icing is optional, but makes it a truly decadent treat. You can use two 20cm or 23cm round cake tins instead of the 25cm ring cake tin, if desired.
300g plain flour
1/2 teaspoon bicarbonate of soda
11 (58g) Mars® bars
300g cooking margarine, divided
400g caster sugar
2 teaspoons vanilla extract
60g chopped walnuts
250g icing sugar
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Method Prep:15min › Cook:1hr › Ready in:1hr15min
Preheat oven to 180 C / Gas 4. Grease and flour a 25cm ring cake tin. Sift together the flour and bicarbonate of soda. Set aside.
In a medium saucepan, melt 8 chocolate bars with 100g of the margarine, stirring until smooth. Remove from heat and set aside to cool.
In a large bowl, cream together 100g margarine and 400g caster sugar until light and fluffy. Beat in the eggs one at a time, then stir in the vanilla. Beat in the flour mixture alternately with the buttermilk, mixing just until incorporated. Stir in cooled chocolate mixture and chopped nuts.
Pour cake mixture into prepared cake tin. Bake in the preheated oven for 40 to 60 minutes, or until a skewer inserted into the centre of the cake comes out clean. Let cool in tin for 15 minutes, then turn out onto a wire rack and cool completely.
To make the icing: In a medium saucepan melt remaining 3 chocolate bars with remaining 100g margarine. Stir until smooth. Beat in icing sugar to desired thickness.