Start by preheating your oven to 350 degrees F (175 degrees C). Line a 9×13-inch baking pan with foil and spray it with non-stick cooking spray to ensure your bars come out easily.
In a medium bowl, combine 2 cups of graham cracker crumbs, 1 tablespoon of light brown sugar, ½ teaspoon of ground cinnamon, and ¼ teaspoon of salt. Mixing these dry ingredients together helps to ensure that the flavors are evenly distributed throughout the crust.
Pour in ½ cup of melted butter and stir with a fork until the mixture is evenly moistened. You want it to come together but not be too wet. Then, turn the mixture out into the prepared pan, pressing it into an even layer at the bottom.
Next, sprinkle 1½ cups of semisweet chocolate chips over the crust. This layer is crucial as it adds that rich chocolatey flavor that complements the other ingredients beautifully.
Then, add the 30 quartered caramels evenly across the top. Their gooey texture will melt during baking, adding to the magic!
Follow with the chopped 2 medium Granny Smith apples and 1½ cups of finely chopped walnuts. Be sure to spread them evenly for a consistent bite of flavor.
Drizzle 14 ounces of sweetened condensed milk evenly over the entire mixture. This will help bind everything together and create that irresistible gooeyness.
Using the back of a spoon, gently press down on the mixture. This step ensures that most of it is at least partially submerged in the milk, creating a deliciously cohesive bar.
Finally, bake the bars for about 30 to 35 minutes, or until the edges are golden brown and the center is set. You’ll know they’re done when your kitchen fills with a delightful aroma. Allow them to cool completely in the pan before removing and slicing into squares.
