Creating these bars is as simple as it gets. Follow these steps to whip up a batch:

1. In a medium bowl, combine the graham cracker crumbs, melted butter, and granulated sugar. Mix until the crumbs are well-coated and resemble wet sand.
2. Press the crumb mixture firmly into the bottom of an 8×8-inch pan lined with parchment paper. Chill in the refrigerator while you prepare the filling.
3. In a large mixing bowl, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy.
4. In a separate bowl, whip the heavy cream until stiff peaks form. Gently fold the whipped cream into the cream cheese mixture until fully incorporated.
5. Spread the cream cheese filling evenly over the chilled crust. Smooth the top with a spatula.
6. Arrange the kiwi slices on top of the cheesecake layer in a decorative pattern, and drizzle with lemon juice to enhance the flavor.
7. Refrigerate the bars for at least 4 hours, or until set. For best results, let them chill overnight.
8. Once set, slice the bars into squares and serve chilled.

As a personal tip, I find that using a sharp knife dipped in hot water helps achieve clean slices, ensuring your bars look as good as they taste.