When it's looking dire in the fridge and a desperate need for cake is taking over, some people resort to making a simple Victoria Sponge or Vanilla Cupcakes. My 'day-before-a-food-shop' saviour is this amazingly simple Apple Crumble Traybake.
Preheat the oven to 180°C Fan. Line a baking tray with baking parchment with sides overhanging slightly so it's easier to lift the traybake out later.
In a large mixing bowl, mix flour and baking powder. Cube room temperature butter and rub it into the flour with your fingertips.
Add sugar, cinnamon and a pinch of salt and mix. Then crack an egg in and mix with your hands until large clumps of dough form, squeezing the dough to help the process along.
Tip half of the mixture into a baking tray and press down to cover the whole surface. Spread the jam of your choice on top in a thin layer
Core your apples, and peel them if their skins are tough. Slice the apples very thinly and start layering them on top of your jam, sprinkling with some brown sugar in between layers. You should get 2-3 layers.
Sprinkle the rest of the buttery mixture to create a crumble top.
Bake in the centre of the oven for 40 minutes until the top is golden brown. Cool then lift out and cut into portions to serve with tea or coffee! Or serve warm with a scoop of vanilla ice cream!