Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
Step 2: Prepare and Bake the Cake
Prepare the yellow cake mix according to the box instructions, substituting the water with the reserved peach syrup for added flavor. Pour the batter into the prepared baking dish and bake as directed.
Step 3: Poke Holes in the Cake
Once baked, allow the cake to cool for 10 minutes. Use a fork or skewer to poke holes all over the surface of the cake.
Step 4: Add the Filling
In a mixing bowl, combine the sweetened condensed milk and chopped peaches. Pour this mixture evenly over the cake, allowing it to seep into the holes.
Step 5: Prepare the Cobbler Topping
In a small bowl, mix the flour, brown sugar, melted butter, and cinnamon until crumbly. Sprinkle the cobbler topping evenly over the cake.
Step 6: Bake Again
Return the cake to the oven and bake for an additional 10-12 minutes, or until the topping is golden brown.
Step 7: Cool and Serve
Allow the cake to cool completely before serving. Top with whipped cream or a scoop of vanilla ice cream for an extra indulgent touch.