Pre-heat oven to 350°F Sprays a 9×13-inch pan with nonstick cooking spray.
Mix prepared fruit in a medium-sized bowl with lemon zest, juice, cornstarch, and vanilla. Place fruit in a 9×13-inch pan.
After this, Mix flour, baking powder, sugar, and salt in a large bowl. Now You can use a food processor to chop the butter into a course meal-like consistency.
Mix half and a half and mix to make a thick batter.
To make a cobbler crust, place the batter in large clumps over the fruit.