Cherry-Plum and Blackberry Cobbler

We have a cherry-plum tree!  Which means it produces plums the size of cherries, basically.  It turns out it's really hard to find recipes for cherry-plums, so I modified a recipe I found here to make it work for these.

Cherry-Plum and Blackberry Cobbler

1 cup water
1 cup sugar -- divided
1 cup flour
1/2 cup butter -- melted
2 tsp baking powder
1/2 tsp salt (only if you don't use salted butter)
1 cup pitted cherry-plums (that's 1 cup AFTER you've pitted them, not before)
2 cups fresh blackberries

Whisk together water, four, butter, baking powder, and 3/4 cup sugar.  Pour into ungreased 8"x8" baking dish.

In separate bowl, mix cherry-plums with 1/4 cup sugar until thoroughly coated.  Stir blackberries in with cherry-plums.  Pour on top of the batter in the baking dish.  Bake at 400 degrees for 25-30 minutes, until top turns golden and it's not jiggly in the middle.

Serve warm or cold, top with ice cream or whipped cream if you want a bigger sugar rush.

I know I don't usually post pictures, but I happened to take one, so here it is:

Cherry-Plum and Blackberry Cobbler, huzzah!