Here's the recipe:
Ripe oranges 10
Brewed tea for tannin
Sugar 1kg
Store-bought orange juice 0.5L
Active dried baking yeast 4gm
Vegemite 2 pea-size blobs for yeast nutrient
Water to 5L
The oranges' squeezed juice, store juice, zest, sugar and some of the water went into a pan for a...