In a gallon-sized Ziploc bag, add the oil, ranch dressing mix, onion powder, and red pepper flakes. Seal the bag and squish it around to mix the ingredients well.
Add the cheese crackers to the bag, seal it tightly, and gently turn the bag over several times to evenly coat the crackers with the seasoning.
Let the crackers marinate in the bag for at least 1 hour or up to overnight for maximum flavor.
Lay the crackers in a single layer on a lined baking sheet. (You may need to work in batches to avoid overcrowding.)
Bake for 20-25 minutes, stirring once or twice, until the crackers are toasted and golden.
Allow the crackers to cool completely before serving. Enjoy!
Notes
Let the crackers sit in the seasoning mixture for at least 1 hour or, for the best flavor, overnight. This allows the oil and seasonings to fully absorb.
When coating the crackers in the bag, turn the bag gently to avoid breaking them. A slow, steady motion ensures even coverage without crumbs.
Use parchment paper or a silicone mat to make cleanup easier and prevent the crackers from sticking as they bake.
If you prefer less heat, reduce the red pepper flakes to ½ - 1 tablespoon. For extra spice, add up to 2 tablespoons or a pinch of cayenne pepper.
Stir the crackers once or twice during baking to ensure they toast evenly on all sides. This step keeps them crisp without burning.