Easy Peach Cobbler

I had a few ripe peaches and attempted to make an easy peach cobber.  The recipe is from Food Network.  Well I am not sure what really went wrong.  It just didn't come out the way I pictured.  I am not sure if it was because I halved the recipe and baked it in a 11x7 pan.  Maybe I should have done it in a smaller square pan.  The flavor was good but the texture is not what I thought it would be.

The recipe below is the full recipe:

1/2 cup unsalted butter, melted
1 cup all-purpose flour
2 cups sugar
3 teaspoons baking powder
Pinch salt
1 cup milk
4 cups peeled, pitted and thinly sliced fresh peaches (5 to 6 medium peaches)
1 tablespoon fresh lemon juice
Several dashes ground cinnamon or ground nutmeg (optional)
Directions
Preheat oven to 375 degrees.

Pour the melted butter into a 13 by 9 by 2-inch baking dish.

In a medium bowl, combine the flour, 1 cup sugar, the baking powder, and the salt and mix well. Stir in the milk, mixing until just combined. Pour this batter over the butter but do not stir them together.

In a small saucepan, combine the peaches, lemon juice, and remaining cup of sugar and bring to a boil over high heat, stirring constantly. Pour the peaches over the batter but do not stir them together. Sprinkle with cinnamon or nutmeg if desired.

Bake in the preheated oven for 40 to 45 minutes or until the top is golden-brown. Serve warm or cold.