Step 1

Cream butter, sugar and brown sugar in the bowl of a stand mixer on medium speed for about 2 minutes.

Step 2

Add eggs, vanilla and lemon juice, blending with mixer on low speed for 30 seconds, then medium speed for about 2 minutes, or until light and fluffy, scraping down bowl.

Step 3

With mixer on low speed, add flour, oats, baking soda, salt and cinnamon, blending for about 45 seconds. Don’t overmix.

Step 4

Remove bowl from mixer and stir in chocolate chips and walnuts.

Step 5

Portion dough with a scoop (about 3 tablespoons) onto a baking sheet lined with parchment paper about 2 inches apart.

Step 6

Preheat oven to 300°F. Bake for 20 to 23 minutes, or until edges are golden brown and center is still soft.

Step 7

Remove from oven and cool on baking sheet for about 1 hour.