Step 1

Preheat oven to 180°C. Grease and line a 6.5cm deep, 20cm (base) round cake pan with baking paper.

Step 2

Using electric mixer, cream butter, sugar and vanilla until pale and creamy (see note). Add egg. Beat well. Transfer mixture to a larger bowl. Using a large metal spoon, fold flour and milk alternately into butter mixture until just combined.

Step 3

Spread mixture into the prepared pan. Smooth surface. Bake for 30 to 35 minutes or until a skewer inserted into the centre comes out clean. Stand cake in pan for 10 minutes. Turn onto a wire rack.

Step 4

While cake is still warm, brush top with melted butter. Combine cinnamon and sugar. Sprinkle over cake.