Preheat oven to 350 degrees.

Grease and flour a 9 x 13 pan and set aside.

In a large bowl, blend butter, brown sugar, and 1 cup of sugar with a mixer. Beat together until fluffy.

Add eggs to the mixture 1 at a time until blended. Then blend in 1Tbsp of vanilla.

Then blend in the flour, baking powder, and salt just until well combined.

Spread 3/4 of the batter into the prepared 9 x 13 pan.

Sprinkle batter with raspberries.

In another bowl, toss the peaches with the remaining 1/2 cup sugar, 1/4 cup flour, and 2 Tbsp vanilla until coated.

Spoon peaches over the raspberries and dollop the remaining 1/4 of the batter over the peaches. Then you can sprinkle the whole thing with cinnamon sugar if desired, but isn't necessary.

Bake at 350 for 1 hour until golden brown and bubbly.

Cool on a wire rack for 1 hour. Cut into bars and serve warm with ice cream or sweetened whipped cream. Serves 15.