Prep oven and pan. Position a rack in the center of your oven, and preheat the oven to 350°F/177°C. Prepare a cookie sheet with parchment paper (or you can use a silicon baking mat)
Combine dry ingredients. In a medium sized mixing bowl, whisk your flour, baking soda, salt, and cinnamon together. Set aside. 2 cups (240 g) all purpose flour 1 teaspoon baking soda 1 teaspoon salt ½ teaspoon ground cinnamon
Combine wet and dry ingredients. In a second bowl cream together the softened butter and sugars until light and fluffy about 2-3 minutes. Add in your eggs one at a time, beating to incorporated. Beat in vanilla. Scrape down bowl as needed. 1 cup (2 sticks, 226 g) unsalted butter, 1 cup (213 g) packed light brown sugar ½ cup (100 g) granulated white sugar 2 large eggs 2 teaspoons vanilla extract
Combine wet and dry mixtures. Add in your dry ingredients, mix on low speed. Be careful to not overmix.
Add oats and mix-ins. Add in the oats, coconut, pecans, and chocolate chips. Mix on low speed to incorporate. 2 cups (200 g) old-fashioned oats 1 cup (85 g) sweetened shredded coconut 1 cup (128 g) toasted, chopped pecans 1 ½ cup (255 g) semisweet chocolate chips
Scoop and bake. Use a 1-inch (small) scoop (or about 1 1/2 tablespoonful) and place 12 cookies about 2 inches apart onto a cookie sheet.
Bake for 11-13 minutes until edges are set and golden brown and middles still look slightly soft. Remove from the oven. Allow cookies to cool 5 minutes on the cookie sheet before transferring the cookies to cool on a cooling rack.