Zest of 1 lemon plus juice of 12 lemons (660 grams)
2 cups (375 grams) granulated sugar
1 1/4 cups (280 grams) unsalted butter
9 large eggs
7 sheets (17 grams) gelatin
1 cup (230 grams) butter, at room temperature
2/3 cups (150 grams) brown sugar
2 tablespoons (40 grams) honey
1 1/2 cups (180 grams) all-purpose flour, plus more for dusting
1 cup (120 grams) whole-wheat flour
1/2 cup (60 grams) wheat germ
1 teaspoon (4 grams) baking soda
Pinch cinnamon
Pinch salt
8 large egg whites
2 1/2 cups (500 grams) granulated sugar