Ingredients
Streusel
Method
1.To make streusel, process flours, sugar and cinnamon until combined. Add butter; process until ingredients just come together. Wrap in plastic wrap; freeze about 1 hour or until firm (note: this needs to freeze for 1 hour before using; don’t start cake until streusel is almost ready to use).
2.Preheat oven to 180°C/350°F. Grease deep 22cm (9 inch) round cake pan; line with baking paper.
3.Beat butter, rind and caster sugar in small bowl with electric mixer until light and fluffy. Beat in eggs, one at a time. Transfer to large bowl; stir in sifted flours and milk, in two batches. Spread mixture into pan; bake 25 minutes.
4.Peel, core and quarter apples; slice thinly. Melt extra butter in large frying pan; cook apple, stirring, about 5 minutes or until browned lightly. Add brown sugar; cook, stirring, about 5 minutes or until mixture thickens slightly. Set aside.
5.Remove cake from oven, quickly top cake with apple mixture; coarsely grate streusel over apple. Return to oven; bake about 25 minutes. Stand cake in pan 10 minutes before turning, top-side up, onto wire rack to cool. Serve cake warm or cold.
Store in an airtight container, at room temperature, for up to 3 days. Suitable to freeze for up to 2 months.
Note