Step 1:
Preheat your oven to 425°F (220°C). Place all 4 cups of self raising flour into a large mixing bowl.

Step 2:
Cut butter into small pieces then use your fingers to 'rub' it into the flour. Ensure the butter is well mixed into the flour.

This should only have taken a minute.

Step 3:
Now add your can of lemonade and using a wooden spoon, mix it in all very quickly (the less the mixture is handled the better). If your mixture is too dry, add extra lemonade. If your mixture is too wet, add more flour.

Step 4:
Turn out onto a lightly floured surface and quickly shape your mixture into a square or rectangle. Cut into 12 pieces.