Classic Hungarian Raisin Nut Roll - Dios Kalacs

Ingredients

• 1/2 cup milk , warm
• 4 1/2 teaspoons active dry yeast
• 6 - 6 1/2 cups all-purpose flour , plus extra for rolling
• 3/4 teaspoon salt
• 6 tablespoons sugar
• 1 cup sour cream , room temperature
• 3/4 cup butter , very soft
• 3 eggs , beaten , room temperature
• 1/4 cup butter , for basting before and after baking
• 1 1/2 cups golden raisins , soaked in warm water 2 to 3 hours
• 2 cups pecans , finely chopped or 2 cups walnuts , may be used
• 1/2 cup sugar
• 1/2 teaspoon vanilla extract
• 1/4 teaspoon almond extract
• 1 egg white , beaten to soft peaks