Cut out an 8 x 8 inch square of parchment paper. Place the parchment paper in the bottom of an 8 x 8 inch baking pan.
In a large sauce pan, add butter, brown sugar, honey and peanut butter. Heat over medium-low heat, stirring occasionally until the mixture starts to bubble. Once bubbling, cook for 2 minutes while stirring. Remove from heat and stir in the vanilla extract.
Stir in the oats, crispy cereal, and pretzels. Stir until well coated. Pour into the prepared pan. Press the mixture evenly into the pan. Sprinkle the mini chocolate chips over the top and gently press into the granola bars with your hands.
Place the bars in the refrigerator and let cool for at least 30 minutes before cutting. Cut into bars and serve.
Note-I store the bars in the refrigerator. I've kept them in the fridge for up to a week and they are still tasty! For gluten-free, use gf oats and pretzels.