+12 Plum Cake Ideas. Grease and line the base and sides of a 20 x 30cm lamington pan with baking paper. Add flour, lemon juice, vanilla and milk and beat gently until combined.

Whisk eggs well and stir into cooled butter mixture. Grease and line the base and sides of a 20 x 30cm lamington pan with baking paper. To make the topping, melt butter and stir in sugar and cinnamon, then allow to cool a little.