Beat together oil, sugar, eggs, bananas and almond essence. Sieve together flour, baking soda, baking powder and salt, and mix into banana mixture together with yogurt. Pour into a greased 2 quart ring pan. Microwave at 50% for 12 minutes. Microwave on full power for a further 2 minutes.
Allow cake to stand in pan for 15 minutes before turning out. Fudge Icing 2 tablespoons butter 1 cup brown sugar 3 tablespoons milk 1 cup icing (confectioners) sugar 1 tablespoon cream 1 sliced banana, dipped in lemon juice Place butter, brown sugar and milk in a bowl. Microwave at 50% for 5 minutes. Stir well.
Microwave on high for 3 minutes. Pour into a cold bowl and cool slightly. Beat cream into icing and add icing sugar bit by bit until the mixture forms a drizzling consistency. (You might not use all the icing sugar). Drizzle all around the ring cake. While still soft, decorate with banana slices.