Preheat oven to 350ºF. Melt butter in a 9x13 casserole dish in
the oven as it preheats.
Whisk together the flour, 1 1/4 cups of sugar, milk and the
vanilla in a medium bowl while the butter melts. Pour into the
melted butter without stirring.
Add the remaining 1/4 cup of sugar to the strawberries, tossing
to coat. Spoon the strawberries into the butter and dough
mixture without stirring.
Bake until the cobbler crust has turned lightly golden brown and
the cobbler is set throughout about 45 minutes. Remove from
the oven and serve, topped with vanilla ice cream, if using.