Yes, you can make a version of Churro Chex Mix without using an oven. Here's an alternative stovetop method: In a large pan or skillet, melt butter over medium heat. Add brown sugar and honey to the melted butter, stirring until well combined and the mixture becomes smooth and creamy. Stir in cinnamon and any other desired spices for flavor. Add Chex cereal, pretzels, and any other mix-ins you prefer, gently tossing them in the caramel mixture until well coated. Continue to cook and stir the mixture over medium heat for a few minutes until the Chex cereal and pretzels are evenly coated and slightly toasted. Be careful not to burn them. Remove the pan from heat and let the mixture cool completely.