1tablespoonvanilla extract or 2 packets vanilla sugar
3cups(330 g) old-fashioned (rolled) oats
3cups(330 g) quick-cooking oats
3cups(400 g) raisins or other dried fruit, chocolate chips or chunks or chopped nuts in any combination*
Instructions
Heat oven to 350°F (175°C). In a medium bowl, whisk together white flour, whole wheat flour, cinnamon, salt and baking soda and set aside.
With an electric mixer, cream together butter, oil and granulated sugar. Mix in brown sugar. Add eggs and vanilla and mix well. Add flour mixture and beat until combined. Using a sturdy spoon, stir in both kinds of oats. Stir in raisins (and/or chocolate chips and nuts).
Drop tablespoons of cookie dough (about 1 inch or 2.5 cm in diameter) onto baking tray lined with parchment paper.
Bake for about 9-10 minutes, just until the edges are lightly golden. Cool on the tray for one minute then carefully transfer to a wire rack to cool completely. Store in a tightly-sealed container at room temperature for up to four days or in the freezer for up to two months.
Notes
* For example, 2 cups raisins and 1 cup chocolate chips or 1 ½ cups dried cranberries and 1 ½ cups white chocolate chunks or 1 ½ cups dried cherries and 1 ½ cups dark chocolate chunks.