Laura's (Bush) Oatmeal-Chocolate Chunk Cookies

1 1/2 cups (3 sticks) butter, at room temperature
1 cup sugar 1 1/2 cups light-brown sugar
3 eggs
1 tablespoon vanilla
3 cups flour
1 tablespoon baking powder
1 teaspoon salt
2 teaspoons cinnamon
3 cups quick oats (not old-fashioned)
2 cups chopped walnuts
1 1/2 packages (8 ounces each) chocolate chunks (3 cups)
2 cups coarsely chopped dried sour cherries

Heat oven to 350°. With electric mixer, cream butter and both sugars. Beat in eggs one at a time, then beat in vanilla. Add flour, baking powder, salt, cinnamon and oats; slowly beat until blended. Stir in walnuts, chocolate and cherries. Drop by tablespoonfuls onto cookie sheet covered with parchment paper. Bake at 350° for 12 to 15 minutes, until golden brown. Makes about 8 dozen.