Can be served warm as a dessert with softly whipped cream or yoghurt.
Pre heat oven to 160 degrees C. Spray a 20 - 21 cm spring form tin or bundt tin with non stick baking spray and if using a spring form tin, line the base with baking paper.
Place butter in a large microwave proof bowl and melt. Then add all the other ingredients and mix well. Pour into the prepared tin and bake for 55 - 60 min. The surface will be golden brown and firm and edges will be pulling away from the side of the tin. Cool on a wire rack and dust with icing sugar to serve.