Preheat the oven to 350°F (175°C). Combine graham cracker crumbs and 1/4 cup sugar in a mixing bowl. Pour in melted butter and mix until crumbs are evenly coated. Press this mixture firmly into the bottom of an 8x8 inch baking pan to form the crust, then bake for 8-10 minutes until fragrant and slightly set. Remove and cool on a rack.
1 1/2 cups Graham cracker crumbs, 1/4 cup granulated sugar, 1/2 cup unsalted butter
In a large mixing bowl, beat softened cream cheese with 1/2 cup sugar and vanilla extract using an electric mixer until smooth and creamy, about 2-3 minutes. Spread this mixture evenly over the cooled crust, smoothing the top with a spatula. Chill in the refrigerator for at least 30 minutes to set.
16 oz cream cheese, 1/2 cup granulated sugar, 1 teaspoon vanilla extract
Meanwhile, prepare the berry layers. In a saucepan, combine berries, 1/2 cup sugar, and cornstarch. Cook over medium heat, stirring constantly, until the mixture thickens and berries release their juices, about 5-7 minutes. Carefully blend the mixture until smooth using a immersion blender or regular blender, then strain to remove seeds if desired. Allow to cool slightly.
2 cups mixed berries (strawberries, blueberries, raspberries), 1/2 cup granulated sugar, 2 tablespoons cornstarch
Prepare two separate berry gelatin layers: Divide the cooled berry puree into two equal parts. Dissolve 2 tablespoons of gelatin in 1/2 cup hot water in each bowl, stirring until completely dissolved. Mix one portion of berry puree into one gelatin bowl, stirring well, then pour gently over the chilled cream cheese layer in the pan. Repeat with the second berry puree and gelatin, layering it on top. Chill each layer for about 30 minutes until set before adding the next or proceeding.
1 cup hot water, 2 cups mixed berries (strawberries, blueberries, raspberries), 1/2 cup granulated sugar, 2 tablespoons cornstarch
Once all layers are set and firm, cut into 12 squares using a sharp knife. Garnish with additional berries if desired. Serve chilled, and enjoy the vibrant, layered cheesecake bars with a firm crust and luscious filling.