Making Chicken Cobbler is straightforward and fun. Follow these steps to create your comforting dish:

1. Preheat the Oven: Preheat your oven to 400°F (200°C).

2. Prepare the Filling: In a large pot, combine the cooked chicken, frozen vegetables, chicken broth, milk, diced onion, melted butter, garlic powder, thyme, salt, and pepper. Mix until well combined and heat on medium until warm but not boiling.

3. Prepare the Biscuit Dough: In a separate bowl, whisk together the flour, baking powder, sugar, and salt. Cut in the cold butter cubes until the mixture resembles coarse crumbs.

4. Add Liquid: Stir in 1 cup of milk gradually, mixing just until combined. The dough should be slightly sticky.

5. Assemble the Cobbler: Pour the warm chicken filling into a 9×13 inch baking dish. Drop spoonfuls of biscuit dough over the top of the chicken filling, leaving some gaps for steam to escape.

6. Bake: Place the dish in the preheated oven and bake for 30-35 minutes, or until the biscuit topping is golden brown and cooked through.

7. Cool: Allow the Chicken Cobbler to cool for about 10 minutes before serving. This will help the filling set a little.