Step 1

Preheat oven to 350F.

Step 2

Spray a 9" round cake pan with cooking spray.

Step 3

Prepare cake according to package directions.

Step 4

Melt butter in the microwave.

Step 5

Mix the melted butter and the brown sugar together well.

Step 6

Scrape the brown sugar mixture into the bottom of the prepared cake pan.

Step 7

Drain the peaches and slice any thick pieces in half.

Step 8

Arrange the peach slices in a single layer on top of the brown sugar mixture in the cake pan.

Step 9

Sprinkle the raspberries on top of the peach slices.

Step 10

Spread the prepared cake mix out evenly over the fruit in the cake pan.

Step 11

Bake 45 to 50 minutes or until a toothpick inserted in the center comes out clean.

Step 12

Remove from oven and allow to cool for about 5 minutes in the cake pan.

Step 13

Next invert the cake onto a serving plate.

Step 14

Serve warm or at room temperature.

Step 15

Garnish with whipped cream or ice cream if desired.

Step 16

Enjoy!