Step 1: Prepare Your Baking Sheet - Preheat your oven to 250°F (120°C) and line a large baking sheet with parchment paper.
Step 2: Combine Cereal and Pecans - In a large mixing bowl, combine the Crispix cereal and pecan halves, mixing gently.
Step 3: Make the Praline Mixture - In a medium saucepan, combine brown sugar, corn syrup, and butter. Heat over medium heat, stirring until it boils. Boil for 1 minute without stirring.
Step 4: Add Flavor and Texture - Remove from heat and stir in vanilla extract and baking soda, being cautious of bubbling.
Step 5: Coat the Cereal and Pecans - Pour the praline mixture over the cereal and pecans, stirring until evenly coated.
Step 6: Bake the Praline Crunch - Spread the mixture on the prepared baking sheet and bake for 1 hour, stirring every 15 minutes.
Step 7: Cool and Break Apart - Allow to cool completely on the baking sheet, then break into clusters and store in an airtight container.
