Lighter Frozen Blueberry Cobbler

Ingredients (12)

• 5 cups frozen blueberries
• 1 lemon juiced
• 6 Tbsp butter melted
• 1 cup milk
• 1 cup sugar
• 1/2 tsp salt
• 2 tsp baking powder
• 2 cups flour
• 1/2 tsp vanilla extract
• 1/2 cup sugar
• 2 Tbsp cornstarch
• 2 cups boiling water