1 (1 oz) packet dry ranch salad dressing and seasoning mix
1/2 cup salted butter, melted

Directions
Preheat your oven to 250°F (120°C). Line a large rimmed baking sheet with aluminum foil for easy cleanup and set it aside.
Pour the oyster crackers into a large mixing bowl so you have room to stir without spilling.
In a small bowl or measuring cup, stir the dry ranch seasoning into the warm melted butter until the mix is mostly dissolved and no big clumps remain.

Drizzle the ranch butter mixture evenly over the oyster crackers. Gently toss with a spatula or large spoon until every cracker looks lightly coated and shiny. Take your time so the seasoning is spread as evenly as possible.
Spread the seasoned crackers in a single layer on the foil-lined baking sheet. It’s fine if they touch, but avoid deep piles so they crisp evenly.