2 (15-ounce) cans sliced peaches in heavy syrup (do not drain)
1 box (15.25-ounce) yellow cake mix
1/2 cup (1 stick) unsalted butter, thinly sliced into pats
1 teaspoon ground cinnamon
Cooking spray
Instructions
Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish with cooking spray to ensure the peaches don’t stick to the bottom.
Pour both cans of sliced peaches, including the heavy syrup, into the prepared baking dish. Spread them out evenly so they cover the entire bottom of the pan.
Sprinkle the dry yellow cake mix evenly over the top of the peaches. Use a spoon or your hands to make sure the cake mix covers the fruit completely in an even layer. Do not stir the mixture.
Sprinkle the ground cinnamon over the surface of the cake mix. Then, place the thin slices of butter across the entire top of the cake mix. Try to space them evenly so the butter melts and covers as much of the dry mix as possible.
Place the dish in the oven and bake for 40 to 45 minutes. The cake is done when the top is golden brown and the peach filling is bubbling up around the edges.
Remove the pan from the oven and let it sit for at least 10 minutes before serving. This allows the syrup to thicken and the crust to set slightly.