Upside Down Hazelnut Honey Spice Cake with Caramelized Apples | notes.improvisedscience.org.

Ingredients

• 3 medium apples (e.g., 2 Granny Smith and 1 Gala)
• Fresh lemon juice
• 57 grams (4 tablespoons) unsalted butter
• 50 grams (1/4 cup) granulated sugar
• 85 grams (1/4 cup) honey
• 1/2 teaspoon vanilla extract
• 1/2 teaspoon salt
• 71 grams (1/2 cup) all-purpose flour
• 71 grams (1/2 cup) hazelnut flour
• 3 tablespoons corn starch
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 teaspoon ground cinnamon
• 1/2 teaspoon freshly grated nutmeg
• 100 grams (1/2 cup) granulated sugar
• 169 grams (12 tablespoons) unsalted butter, room temperature
• 127 grams (1/4 cup) honey
• 3 large eggs, room temperature