Avocado-Buttermilk Dressing

This is great as a dip for fresh vegetables or for dressing a salad.

1 medium firm-ripe avocado, peeled, seeded and cubed (tested with Haas)
2/3 cup buttermilk
1/4 cup sour cream
3 tablespoons grated sweet onions
2 1/2 tablespoons fresh lime juice
2 tablespoons olive oil
1 teaspoon minced garlic
1 teaspoon minced fresh dill
1/2 teaspoon salt
1/8 teaspoon cayenne

Combine all the ingredients in a blender and blend on high speed until smooth, scraping down the sides as needed. Adjust the seasoning, to taste.

Transfer to a bowl, cover with plastic wrap (you want the wrap touching the dressing so it doesn't turn brown), and refrigerate until ready to use. The dressing can be made up to 4 hours in advance.

Yield: 1 3/4 cups