First, melt butter in the microwave, then let it cool. In a separate medium mixing bowl, combine 1 cup of granulated sugar and flour. Whisk in a cup of milk until batter is formed. Slowly drizzle in the cooled down melted butter, and whisk well, to fully combine ingredients.

Grease or butter a 9 inch round baking dish. Pour the batter into the prepared dish, and spread evenly.

Rinse the blackberries and then pat them dry. Evenly place the blackberries on top of the batter. Sprinkle the berries with 1/4 cup granulated sugar.

Bake cobbler in a preheated 350 degree oven for 55-60 minutes, until the cobbler is bubbly and surface is golden in color. If you want, you can remove the cobbler from the oven about 10 minutes before it is done, sprinkle the top with another couple teaspoons of sugar, then place back in oven for final 10 minutes. When cobbler is done, remove pan from oven. Let it cool down a little bit before serving, then slice it up and serve with a big ol' scoop of vanilla ice cream! Enjoy!