Never heard of a sonker?

You won’t forget it after this.

Cookbook author Nancie McDermott hails from the Piedmont region of North Carolina, yet had never tasted a sonker.

Berry Sonker with Dip

Credit:Victor Protasio; Food Styling: Chelsea Zimmer; Prop Styling: Mary Clayton Carl Jones

This is where the agreements end, however.

7cupsfresh blackberries (about 1 34 lb.)

5cupsfresh raspberries (about 1 12 lb.)

Add butter; process until mixture resembles coarse sand.

Whisk together egg yolks and ice water in a small bowl.

With processor running, pour egg mixture through food chute, and process until mixture begins to clump.

Transfer to a lightly floured surface; knead until dough is smooth, 2 to 3 times.

Shape dough into a 7- x 5-inch rectangle, and cover with plastic wrap.

Prepare the Filling:Preheat oven to 350F.

Combine all berries in a large bowl.

Stir together sugar, tapioca, nutmeg, and salt in a small bowl.

Add to berries; toss gently to coat.

Dot top of berries evenly with butter.

Roll dough on a lightly floured surface into a 16- x 12-inch rectangle.

Place dough on top of berry mixture; fold dough under edges of pan and crimp.

Whisk together egg yolk and water; brush dough evenly with egg mixture.

(Cover top with aluminum foil, if needed, to prevent overbrowning.)

Let stand on a wire rack at least 2 hours before serving.

Stir together cornstarch and cold water in a small bowl until smooth, and stir into half-and-half mixture.

Cook until mixture is thick and bubbly, stirring constantly, 1 to 2 minutes.

Strain Dip through a fine wire-mesh strainer into a small serving pitcher, and stir in vanilla extract.

Serve sonker warm, and drizzle each serving with warm Dip.