In a large mixing bowl, add the heavy whipping cream and sugar together. Whisk until it’s thickened into whipped cream. Stop whisk and turn the whisk upside down, if there are stiff peaks, the whipped cream is finished.
If you’re using a piping bag, fill the bag with whipped cream and tie off the ends. Then, place the whipped cream in the fridge until time for assembly.
Wash and prep the fruit. Remove the tops of the strawberries and peel the kiwis.
Spread the jam on the inside of each piece of bread lightly.
Remove the whipped cream from the fridge. Pipe or spread out a half-inch thick layer of whipped cream over the jam on one piece of bread.
Assembly for strawberries: Place the strawberries in a single line diagonally so that the bottom tip of each strawberry is nestled on the top of the next strawberry. Place one strawberry on the other corners.
Assembly for kiwis and strawberry: Take one kiwi and place it in the top right corner so that the ends are touching the sides. Place the strawberry in the same direction in a diagonal line and add another kiwi in the bottom left corner. Place half a kiwi on the other corners.
Fill the spaces between the fruit with the whipped cream. Place a piece of bread with the jam facing the center on top.
Wrap firmly with plastic wrap and put the fruit on a plate or sheet pan.
Mark which way the diagonal line of fruit is because this is where you will be slicing the sandwich later on.
Put another plate or sheet pan on top with something firm to press the sandwiches evenly across (like a can of food or leftovers in Tupperware). Leave this to the rest in the fridge for at least an hour.
Remove from the fridge and figure out which corner the diagonal fruit is laying. Slice the sandwich in this direction carefully. Wipe the knife in between each slice. Optional to remove the crust on the sides.