Directions:

• Step 1: Prepare Your Baking Dish - Grease a 9x13-inch baking dish or line it with parchment paper.
• Step 2: Melt the Sugars and Syrup - In a large saucepan over medium heat, combine Karo syrup, granulated sugar, and packed light brown sugar. Stir until dissolved and boiling (3-5 minutes).
• Step 3: Mix in the Butter and Hazelnut Spread - Add salted butter and salted caramel chocolate hazelnut spread, stirring until melted and smooth.
• Step 4: Combine with the Cereal - Remove from heat and fold in crispy rice cereal until evenly coated.
• Step 5: Press into the Baking Dish - Pour the mixture into the baking dish and press down evenly.
• Step 6: Prepare the Chocolate Layer - In a microwave-safe bowl, combine chocolate chips, Karo syrup, and sweetened condensed milk. Heat in 30-second intervals until melted.
• Step 7: Spread the Chocolate Mixture - Pour over the pressed cereal layer, spreading evenly and sprinkling flaky sea salt if desired.
• Step 8: Let It Set - Cool at room temperature for 30 minutes, then refrigerate for at least 1 hour.
• Step 9: Cut and Serve - Lift bars out using parchment paper, cut into squares, and serve.