Blackberry Lavender Ice Cream Sandwiches

Bahan-bahan (12 porsi)

• 6 cups fresh or frozen blackberries
• 1/2 cup honey
• 1 tablespoon lemon juice
• 1 -2 tablespoons dried lavender
• 1 1/2 sticks (12 tablespoons) unsalted butter, at room temperature
• 1/4 cup honey
• 1 teaspoon vanilla extract
• 2 1/4 cups all purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon cinnamon
• 1/2 teaspoon kosher salt
• 6 ounces white chocolate, finely chopped
• 1/4 cup granulated sugar
• 1 teaspoon dried lavender
• 1 quart vanilla ice cream