3 cups all-purpose flour
3/4 cup white sugar
2 1/2 teaspoons baking powder
1/8 teaspoon salt
2/3 cup butter
2 eggs
1 teaspoon vanilla extract
3 tablespoons milk
1/2 teaspoon lemon zest
1/2 cup all-purpose flour
1/4 cup packed brown sugar
1/2 teaspoon ground cinnamon
1/4 teaspoon salt
1/3 cup chopped hazelnuts
1 teaspoon lemon zest
3 tablespoons butter
5 cups plums, pitted and sliced
1 cup white sugar
1/4 cup all-purpose flour
1 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg