• Heat oven to 180C/160C fan/gas 4.
• Peel and slice the apples, spritz with low calorie cooking spray and place in the over while it heats.
• Put the margarine and sugar in a bowl and beat until light and creamy. Add the egg yolks and mix well
• Whisk the egg whites until they are light and frothy, fold into the mixture
• Add the flour, baking powder, cinnamon and yogurt in two goes, alternating between dry and wet ingredients.
• When combined, stir through the cooked apples, setting aside enough to top.
• Line a cake tin with baking paper. Spoon in the cake mixture, smooth over the top with a spoon
• Cook in the oven for 50 mins – 1 hr or until a skewer inserted into the cake comes out clean. Leave to cool in the tin for 10 mins, then turn out onto a baking rack, remove paper and cool.
• Decorate the top of the cake with the remaining apple slices and glace cherry melt the toffees in a saucepan, and when cool enough to manage spoon the toffee over the apples.

Enjoy!