Preheat your oven to 375ºF and spray a baking sheet with cooking spray. Add the cereal, bugels and mini pretzels to the pan and toss.
Meanwhile, combine the brown sugar, butter and corn syrup in a heavy-bottomed saucepan. Cook the mixture over medium heat until it comes to a boil. Remove from the heat and whisk in the vanilla and baking soda. Pour the mixture over the cereal and toss to coat.
Bake for 15 minutes, stirring every 5 minutes. Remove from the oven and stir. Transfer the mixture onto wax paper and cool completely. Stir in the candy and place into a bowl. Serve.
Notes
Keep the mixture in an airtight container for up to a week.
Add different candies to make this treat unique.