Once the pastry has rested, preheat the oven to 200°C (400°F) fan.
Cut the apples in half and then slice into half-moons about ¼-inch (5mm) thick.
Cut a piece of baking paper to fit a large baking tray. Unwrap the pastry, place onto the baking paper and dust with flour. Roll the pastry out into a rectangle slightly smaller than the piece of baking paper. Trim the edges so they are straight then transfer the pastry (on the baking paper) onto the baking tray.
Place overlapping slices of apples diagonally down the middle of the tart and continue making diagonal rows on both sides of the first row until the pastry is covered with apple slices. Sprinkle with the 1/4 cup of sugar and dot with the butter.
Bake for 35-45 minutes until the tart is dark golden around the edges and the apples have coloured slightly. Drizzle with the caramel (you may need to re-warm it over a low heat on the stove to get it drizzle-able again) then allow to cool before slicing and serving.