Raspberry Lemonade Biscotti

Bahan-bahan (42 porsi)

• 1 cup fresh raspberries
• 1 tablespoon granulated white sugar
• 1 drizzle canola or vegetable oil
• 1 cup (2 sticks) butter, (softened)
• 1⅓ cups granulated white sugar
• 2 large eggs
• 4 teaspoons grated lemon zest, (divided)
• 4¼ cups all purpose flour
• 1 teaspoon baking powder
• ½ teaspoon salt
• ¼ cup raspberry jam
• ½ cup fresh raspberries, (each raspberry gently sliced into fourths)