| 1. all purpose caramelized sugar |
| The Simple Art of Perfect Baking by Flo Braker (1992) |
| 2. confectioners' sugar |
| Better Than Store Bought by Helen Witty and Elizabeth Schneider Colchie (1979) |
| 3. extra fine granulated sugar |
| Better Than Store Bought by Helen Witty and Elizabeth Schneider Colchie (1979) |