Summer Blues Layer Cake - Wild Blueberries

Ingredients

• 2 cups flour
• 2 cups cornmeal
• 2 cups sugar
• 2 teaspoons baking powder
• 2 teaspoons baking soda
• 1 teaspoon salt
• 1/4 teaspoon pepper
• 1 cup shucked corn kernels
• 1 can (13.5 oz) full-fat coconut milk
• 1 cup non-dairy milk
• 1 tablespoon vinegar
• 1/4 cup oil
• 2 cups frozen Wild Blueberries
• 1/2 cup sugar
• 2 tablespoons lemon juice
• 1/2 cup frozen Wild Blueberries
• 3 tablespoons cornstarch
• 8 ounces margarine, at room temperature
• 1 1/4 cups granulated sugar
• 1 cup cooled Wild Blueberry puree
• 1 tablespoon lemon zest
• 1 teaspoon vanilla extract