Strawberry Rhubarb Cobbler

Bahan-bahan (12 porsi)

• 1 pound fresh strawberries (sliced ½-inch thick)
• 8 ounces rhubarb (thinly sliced)
• 1 ¼ cups granulated sugar (divided)
• 1 cup all-purpose flour
• 2 teaspoons baking powder
• 1 teaspoon cinnamon
• ½ teaspoon salt
• ¾ cup milk
• ¼ cup butter