Pastiera sandwich cookies

Ingredients

• 1 cup plus 2 tablespoons butter (2 sticks plus 2 tablespoons)
• 1 ¼ cup powdered (confectioners) sugar
• 1 egg
• 1 egg yolk
• 1 ½ cups Italian organic 00 flour
• 1 cup Italian organic semolina
• Seeds scraped from 1/2 vanilla pod
• Zest (grated) of 1 organic orange
• 8 ounces ricotta cheese
• 1 cup plus 3 tablespoons sugar
• 1/4 teaspoon of orange flower water (or to taste)
• Zest of 1 organic orange, grated
• ¼ cup (2 ounces) chopped candied orange peel
• 2/3 cup cooked wheatberries (see directions in notes at end of recipe)
• ¼ cup milk
• 2 ½ tablespoons butter
• 1 tablespoon + 1 teaspoon water
• ½ cup sugar
• Seeds scraped from ½ vanilla pod (optional)
• 1 sachet powdered gelatin
• 4 egg yolks, lightly beaten