Membrillo (Quince Paste)

Directions

1. 1
   Simmer quince, lemon peel, and 6 cups water in covered saucepan over medium-low heat 40 minutes, or until soft.
2. 2
   Drain, then puree in food processor.
3. 3
   Return to saucepan, and stir in sugar and lemon juice.
4. 4
   Cook over low heat 11/2 hours, or until pink and very thick.
5. 5
   Line loaf pan with parchment paper.
6. 6
   Spread paste in prepared pan, and cool.
7. 7
   Unmold onto cutting board, and slice.