Preheat the oven to 200°C (Gas mark 6/390°F). Spray or brush a couple of baking trays with oil.

Using 3 or 4 different sizes of nesting star cutters, cut out equal amounts of each size of star from the pastry and place on your oiled baking trays.

Lightly beat the egg, then brush a little egg over each pastry star.

Grate 50g of the cheddar cheese with a fine grater and sprinkle over the pastry stars. Try to keep it fairly neat with as much cheese on the stars as possible, but don't worry too much as stray strands of cheese can be snapped off once the stars are cooked.

Bake in the oven for around 10-15 minutes until cooked through and golden. Make sure you keep a sharp eye on them as the smaller stars will cook more quickly - remove the smaller stars once cooked and return the larger ones to the oven to finish baking if necessary.

Remove from the oven and leave to cool a little.

Assemble the trees, starting with the biggest stars and piling smaller stars on top to form each tree.

If your trees are a bit wobbly, you could secure each layer with a small dollop of cream cheese to hold it together.

Top each tree with a star cut from the remaining cheddar cheese.