Add 16 ounces cottage cheese to a blender, food processor, or tall immersion-blender container. Blend until completely smooth, about 3-4 minutes, stopping to scrape down the sides as needed. If any graininess remains, blend another 30-60 seconds, following your appliance’s operating limits.
Add 1 packet dry ranch seasoning mix, approximately 3 tablespoons, to the smooth cottage cheese. Stir thoroughly or pulse briefly until evenly combined. For a less salty dip, add half the seasoning first, then add more to taste.