Step 1: Preheat your oven to 350°F (175°C) for even baking.
Step 2: Line your baking sheets with parchment paper.
Step 3: In a large bowl, whisk together flour, baking soda, and sea salt.
Step 4: Cream together butter and shortening until light and fluffy.
Step 5: Gradually add sugars and beat until creamy.
Step 6: Add eggs one at a time, mixing well after each, then stir in vanilla.
Step 7: Gradually mix in dry ingredients until just combined.
Step 8: Fold in chocolate chips and pecans.
Step 9: Scoop dough onto baking sheets, spacing them about 2 inches apart.
Step 10: Sprinkle flaky sea salt on top of each cookie dough ball.
Step 11: Bake for 10-12 minutes until edges are golden.
Step 12: Cool on baking sheets for 5 minutes before transferring to a cooling rack.
