First, wash and hull strawberries. Dice into small pieces and place in small bowl with washed blueberries. Toss together and set aside.
Grab one slice of white bread and flatten it out with a rolling pin. Spread with about 1 tablespoon of peanut butter and top with ½ teaspoon of raspberry jam.
Using a 4 inch round cutter (or rim of a large glass), cut a round out of the prepared slice of bread to remove the crust. Discard crust. Sprinkle on a tablespoon or so of berries. Repeat with remaining slices of bread. Serve immediately to prevent the bread from going stale.