30-Minute Orange Marmalade

1. 1 Oranges≈ $3.80 每千克 300 克
2. 2 Sugar包装 1 千克 约等于 $1.60 110 克
3. 3 Lemon≈ $4.70 每千克 10 克

灰色的是盐、香料以及每罐用量不足30克的配料：这些家里通常都有，不计入罐子价格。用量30克及以上的糖、醋和油已计入价格。

做法

1. Remove the zest from one orange¹ in a thin strip, cut it into matchsticks, and blanch for 2 minutes in boiling water, then drain.

2. Peel all the oranges¹ and remove the white membranes, cut the flesh into pieces, and remove the seeds. You need about 250 g flesh.

3. Put the flesh, zest, 110 g sugar², and 10 g lemon³ juice in a heavy-bottomed saucepan.

4. Bring to a boil and cook over medium heat for 25 minutes, stirring. The marmalade is ready when a drop on a cold saucer does not spread.

5. Transfer the hot marmalade to a clean 0.25 l jar, let cool, and cover with a lid.

6. Store in the refrigerator for up to 14 days.