My wife made a cobbler with them tonight and it was great. I'll try to get her to type in the recipe.

Mulberry Cobbler

Add 1/2 cup of water and 1 cup of sugar to 2 cups of washed and drained mulberries in a small saucepan. Cook until berries are soft and mostly juice. Stir in 1/4 cup of flour to thicken slightly. Add an additional 1 to 1 and 1/2 cups of berries and stir. Remove from heat and set aside.
Melt 1 stick of butter or margerine in baking dish. Add the following: 1 C. flour, 1 C. sugar, 2 tsp baking powder, 3/4 C milk, 1/4 tsp salt. Mix well until all lumps are gone.
Dump the berry mixture on top, but don't stir it in. Bake for 1 hour at 350. Serve with ice cream, milk, or whipped topping if desired. This is the basic cobbler recipe that I use. You can use other berries or if berries aren't available, use a can of pie filling.

It's listed as a 3 minute cobbler and is real easy. Let me know how it turns out for you.