1. Prepare Your Crunchy Topping: First, line a rimmed baking sheet with parchment paper and lightly grease it with cooking spray. In a medium saucepan, gently bring the granulated sugar, honey, and 3 tablespoons of water to a boil over medium heat. Allow it to cook, without stirring, until the mixture transforms into a beautiful deep-amber color, which typically takes 6 to 7 minutes. Immediately remove it from the heat. Quickly stir in the kosher salt and baking soda, then rapidly fold in the Golden Grahams cereal and toasted sliced almonds until well coated.
2. Cool and Break the Brittle: Carefully spread this warm cereal mixture in an even layer across your prepared baking sheet using a rubber spatula. Let it cool undisturbed until it hardens completely, usually around 40 to 45 minutes. Once firm, break the brittle into delightful, bite-sized clusters.
3. Craft Your Decadent Hot Fudge Sauce: In a separate medium saucepan, whisk together the cocoa powder and light brown sugar. Gradually whisk in the heavy cream and corn syrup until smooth. Cook this sauce over medium heat, stirring occasionally, for about 4 to 5 minutes until it's wonderfully warm. Take it off the heat and stir in the unsalted butter, pure vanilla extract, ground cinnamon, and that tiny pinch of cayenne pepper until the sauce is perfectly smooth and glossy. Allow the sauce to cool, whisking every so often, until it's just warm to the touch (this usually takes 15 to 20 minutes).
4. Assemble Your Valentine's Treat: Now for the best part! In your favorite parfait glasses, layer the warm hot fudge sauce, a generous amount of those crunchy cereal brittle clusters, and scoops of vanilla ice cream. Repeat the layers for an extra luxurious treat! Finish off each parfait with a dollop of whipped cream and a sweet cherry on top, if desired. Enjoy this easy-to-make, heartwarming dessert!