Step 1

Combine yeast, sugar and water in a small bowl; cover. Stand in a warm place about 10 minutes, or until frothy.

Step 2

Sift the flour and salt into a large bowl. Stir in the yeast mixture and olive oil; mix to a soft dough. Bring the dough together with your hands. Add a little extra water, if necessary, to make sure all ingredients are incorporated.

Step 3

Knead dough on a lightly floured surface for 10 minutes, or until smooth and elastic. Push the dough with the heel of your hand, and give it a quarter turn each time. Place the dough in a lightly oiled large bowl; cover. Stand in a warm place about 1 hour, or until doubled in size.

Step 4

"Punch" the dough down with your fist, then knead on a lightly floured surface until smooth. Roll out as desired.

Step 5

Heat olive oil in a medium pan; add onion and garlic. Cook, stirring, until onion is soft.

Step 6

Add tomatoes, tomato paste, caster sugar and oregano; simmer, uncovered, stirring occasionally, 25 minutes or until the mixture is very thick.

Step 7

Stir in basil; season to taste.