Blue-Raspberry Pudding Cake

Ingredients

• 1 cup blueberries (fresh or frozen)
• 1 cup raspberries (fresh or frozen)
• 2 tablespoons lemon juice
• 1 cup all-purpose flour
• 2 teaspoons baking powder
• 1/4 teaspoon salt
• 1/2 teaspoon cinnamon
• 3/4 cup sugar
• 1/2 cup milk
• 1 egg
• 1/4 cup butter, melted
• 1 teaspoon vanilla
• 1 cup sugar
• 1 tablespoon cornstarch
• 1 cup boiling water