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1
For the cake mixture, cream 7 tbsp of the butter and 1/4 cup of the sugar with a fork until light and fluffy. Stir in the 3 egg yolks. In a separate bowl, sift together 1 cup of the flour and the baking powder, then stir into the butter mixture. Stir in the milk. In a third bowl, whisk the 3 egg whites in a bowl until they form stiff peaks, then gently stir in 1 tsp of the sugar. Fold into the bowl with the other ingredients. Preheat the oven to 375u00b0F.
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2
Grease and flour a 10 inch square cake pan. Pour in the cake mixture and smooth the surface with a knife. Bake for about 12 mins.
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3
For the cheesecake mixture, mix together the cream cheese, sour cream, 1/4 cup of sugar, cornstarch, 3 eggs and the caramel until smooth. Spread on top of the cake then return to the oven for 15 more mins.
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4
Meanwhile, to make the crumble, blend 5 tbsp of butter with 1/4 cup of sugar, then sift in the remaining flour and mix in the remaining egg. Bring together with your hands to create a dough, then break into small chunks.
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5
Take the cake out of the oven again and layer with the orange segments, then the crumble. Return to the oven to bake for 30 more mins. Cool on a wire rack. To serve, carefully remove from the pan, and cut into square pieces. Drizzle with caramel sauce.
