2 cups all-purpose flour
2 teaspoons baking powder
2 teaspoons baking soda
1 teaspoon cinnamon
3/4 teaspoon salt
1 cup (2 sticks) unsalted butter, at room temperature
1 cup (packed) brown sugar
3/4 cup sugar
2 eggs
2 teaspoons pure vanilla extract
2 cups rolled oats
2 cups chocolate chips (semisweet and/or milk chocolate)
1 1/2 cups sweetened shredded coconut
1 1/2 cups crushed cornflakes
1 cup chopped pecans