Add the 1 cup olive oil, 2 1/2 tablespoons ranch seasoning, 1 teaspoon Italian seasoning, and 2 tablespoons red pepper flakes to a gallon ziplock bag. Close the bag tightly and mix everything together.: Right away you will notice the aroma of the Italian seasoning waking up as it hits the oil, and the red pepper flakes will begin to bloom, releasing a warm, peppery scent. The oil acts as a solvent for the dry spices, drawing out their essential oils and marrying flavors. Use a clear bag so you can see the distribution, and sniff it gently to confirm the balance of herb and heat is where you want it. One common mistake is scooping the seasonings into a shallow bowl first then adding oil, which can cause uneven distribution. Instead, adding everything directly helps them combine more efficiently.
Add the 16 ounces saltine crackers to the bag and close it tightly. Shake the bag around and flip it from back to front and back again several times until all the crackers have been coated in the oil.: As you gently massage the bag, you should hear a soft sloshing sound and see the specks of seasoning suspend in the oil, creating a uniformly colored mixture. The tactile motion helps incorporate the powders without making a mess. Take your time, pressing out excess air to prevent a messy burst, and make sure the seasoning dissolves into the oil rather than forming dry pockets. If you skip thorough mixing, some crackers will stay unflavored while others get overloaded, so avoid rushing this step.
Let the bag sit for at least 8 hours, flipping it over multiple times throughout to help distribute any settled oil.: Once the crackers are in, the initial visual will be a pile of pale squares coated lightly in oil and flecked with herbs. Gently turn the bag so the crackers are evenly exposed to the mixture, and you will feel them shift as they pick up coating. The saltine crackers should remain intact and crisp to the touch; if they feel soggy, you may have used too much oil. A typical error is overfilling the bag which prevents thorough coating, so use a bag size that allows movement and avoid stuffing it completely full.
You can serve the crackers straight from the bag, or you can spread them out in a single layer on a few parchment-lined baking sheets and bake them at 250 degrees Fahrenheit for 10-15 minutes.: You will hear a satisfying rustle as each cracker rubs against the others, and visually the pieces will darken slightly as they take on the oil. Shake in short bursts, then flip to redistribute any settled seasoning. The goal is an even sheen, not a drenched look. If you hear loud clacking it means you are being too vigorous and risking breakage, so slow down. People sometimes assume longer shaking is always better, but gentle, consistent motion yields a more even coat without crumbling the crackers.
Let the bag sit for at least 8 hours, flipping it over multiple times throughout to help distribute any settled oil: This resting period is where flavors meld and the crackers fully absorb the spiced oil, and you may notice the smell deepen into a savory, pepper scented aroma. As the mixture rests, the ranch seasoning integrates and the heat from the red pepper flakes becomes more evenly distributed. Flip the bag every few hours to prevent pooling and ensure an even coat. A common oversight is serving too soon before the oil has settled, which can result in uneven flavor and oily patches. Patience here transforms good into great.
You can serve the crackers straight from the bag, or you can spread them out in a single layer on a few parchment-lined baking sheets and bake them at 250 degrees Fahrenheit for 10 to 15 minutes: If you choose to bake, expect the kitchen to fill with a toasty, spicy aroma as the flakes toast and the oil becomes more fragrant. Baking sets the coating and makes the surface slightly crisper, offering a different textural experience compared to the no bake version. Watch for subtle visual cues like a deeper golden tint and the faint bubbling of the oil on the cracker edges. One mistake is increasing the oven temperature to speed things up, which can burn the seasoning and make the crackers bitter. Keep to the low temperature and short time so the crackers firm up without overcooking.