Pecan Pie Filling

INGREDIENTS

• 1/2 cup firmly packed dark brown sugar
• 3/4 cup dark corn syrup
• 1/3 cup cornstarch
• 4 egg yolks
• 1 1/2 cups half-and-half
• 1/8 teaspoon salt
• 3 tablespoons butter
• 1 teaspoon vanilla extract