Pig ears are very popular in Chinese cuisine, as snacks, appetizers or full dishes.
Her are some crisp fried pig ears sold as a snack in many of my local food stores. My nearest supermarket also has 5-spice braised ears from time to time.
But probably the best pig ear dish I have eaten was this one in Hunan. I don't know how long they cooked it, but it was soft, spicy and delicious.
Finally here is an excellent article and recipe from member and cookbook author @C J Phillips' blog. I haven't cooked the recipe but have eaten it.