Preheat the oven to 300 degrees.

In a gallon ziploc bag add the oil, ranch dressing mix, onion powder and red pepper flakes.

Squish the bag around to mix everything up.

Add the crackers and seal up the bag.

Gently turn the bag over and over to coat the crackers with the seasoning.

Let marinate 1 hour or up to overnight.

Lay the crackers out in a single layer on a lined baking sheet (will have to do this in batches) and bake for 20-25 minutes until the crackers are toasted.

Let cool and serve!