Bread Machine Potica

Ingredients

• 1/4 cup water
• 1/2 cup sour cream
• 1/4 cup unsalted butter
• 1 large egg
• 2 3/4 cups bread flour
• 2 tablespoons granulated sugar
• 1 teaspoon salt
• 1 (0.25oz) package (7g) or 2 1/4 teaspoons Red Star Active Dry Yeast
• 2 cups walnuts (ground)
• 1/4 cup packed brown sugar
• 1/4 cup granulated sugar
• 2 tablespoons half and half
• 1/4 cup unsalted butter (softened)
• 1/2 teaspoon vanilla extract
• Powdered sugar (for topping, optional)