Beat butter and sugar. Add vanilla and eggs 1 at a time, mix well (it may look like it's split but nothing to worry about).
Sift flour and baking powder together. Add half the flour to the batter mix, add all the milk, then the rest of the flour and stir well together. Pour into a lined cake tin.
Peel and core your apples, wash and hull your strawberries. Chop 1 apple and slice the other. Mix the chopped apple into the cake batter. Cut your strawberries in half.
Mix all your topping ingredients together, fingers are best. Randomly scatter your strawberries and the sliced apple on the top of your cake.
Place chunks of the cinnamon topping mix on and around the apple and strawberries on top of your cake batter, you may or may not use it all.
Place into a preheated 175*C oven for 40-45 mins (mine was 42mins). When cooked cool for about 10 mins in the cake tin to set the topping. Turn out and cool fully.