In a small bowl, whisk the sour cream, mayonnaise, lime zest and juice and season with salt and ground black pepper. Set aside.
Mix
Place the slaw ingredients in a large bowl. Pour the slaw dressing over the cabbage mixture and toss to combine. Adjust seasoning, cover, and chill for at least 20 minutes before serving so the flavors have time to meld.
Notes
Make homemade slaw: To make your own homemade coleslaw mix, you will need 6 to 7 cups of shredded cabbage and 1 carrot shredded.
Use the slicer blade for homemade cabbage mix: If shredding your own cabbage in a food processor, the slicer blade gives longer, prettier shreds. The shredder blade can make cabbage too fine or “confetti-like.”
Make ahead: The dressing can be made 2 to 3 days ahead and stored in an airtight container in the refrigerator.
Storage: Store leftovers in an airtight container in the refrigerator for up to 2 days. The slaw will soften as it sits, but it will still taste delicious.
Other fun additions: Sliced bell peppers, diced jicama, diced radishes, diced apples, diced pears, broccoli slaw.