1 cup walnut halves
2 cups raisins
3/4 cup dark rum
1/4 cup water
1 1/2 cups walnut pieces, roughly chopped
1/4 cup honey
1/4 cup sour cream
4 cups all-purpose flour
2 1/2 teaspoons baking powder
1 1/2 teaspoons baking soda
10 ounces (2 1/2 sticks) unsalted butter, softened
1 1/2 cups packed brown sugar
2 teaspoons vanilla extract
1 teaspoon salt
5 large eggs
4 tablespoons unsalted butter
1/2 cup sugar
2 tablespoons water
I/4 cup rum