Preheat oven to 350 degrees Fahrenheit. Grease a 6 inch nonstick skillet with nonstick spray or melted butter.
Add egg and vanilla extract. Mix to combine.
Add flour, baking soda and sea salt. Stir until combined.
Fold in chocolate chips.
Remove from oven. Dig in immediately for a warm and gooey cookie, or allow cookie to cool.