Two-coloured chocolate-orange tart (Slideshow version)
Stage 9/17 : 5 min.
Cut a piece of thin card the same length as the diagonal of the tart.If you are making a round tart, use the diameter of the tin or mould.
Cover the card with aluminium foil, then wedge it into the tart case, like in the photo.
This is the tricky part: you need to keep the card upright as this is what will stop the two fillings running into each other.