Step 1

Preheat the oven to 375 degrees F.

Step 2

Add the peaches, 1/2 cup of the sugar, the cornstarch, the lemon zest, and the lemon juice to a medium-sized saucepan over medium heat.

Step 3

Bring the mixture to a simmer for 5 minutes. Stir continuously until the peaches start to soften.

Step 4

Take the saucepan off the heat and set it aside.

Step 5

Place the cubed butter in a 9x9-inch baking dish and put it into the preheated oven until the butter has melted.

Step 6

Add the flour, baking powder, salt, remaining sugar, egg, vanilla, and milk to a bowl, and whisk until the flour is just combined.

Step 7

Pour the peaches into the baking dish over the melted butter.

Step 8

Pour the batter evenly over the peaches.

Step 9

Bake in the oven until the cobbler is golden brown, about 40-45 minutes.

Step 10

Serve immediately with some ice cream.