Step 1: Preheat the Oven - Start by preheating your oven to 350°F (175°C).
Step 2: Prepare Your Baking Dish - Line a 9x9 inch baking dish with parchment paper.
Step 3: Mix the Dry Ingredients - In a large mixing bowl, combine the rolled oats, rice crispies cereal, cornmeal, salt, and baking soda.
Step 4: Combine the Wet Ingredients - In a separate bowl, whisk together the honey, oil, vanilla extract, and brown sugar.
Step 5: Combine Wet and Dry Ingredients - Pour the wet ingredients into the dry mixture and mix until well coated.
Step 6: Press into the Baking Dish - Transfer the mixture to your prepared baking dish and press down firmly.
Step 7: Bake - Place the dish in the oven and bake for 20-25 minutes, or until the edges are golden brown.
Step 8: Cool and Cut - Let cool for 10 minutes, then lift out and cut into squares.