Using a hand mixer, beat together the oil and sugars until combined. Add the egg and vanilla and beat until light and fluffy. Mix in the yogurt until combined.
Make a well in the centre of your wet mix; add the flour, salt, and soda into the centre; mix the dry ingredients together first to combine them before mixing them through the wet ingredients. Mix until just combined (do not over beat) and fold through 1/4 cup of the chocolate chips. Refrigerate until firm (minimum three hours or overnight if you can is required for the batter, as it is stickier due to the yogurt compared to normal cookie dough).
When you're ready to bake, preheat oven to 176ºC | 350ºF.
Scoop and roll 1/2 teaspoon of cookie dough PER COOKIE into balls and place onto a baking tray/sheet lined with baking/parchment paper. Press a few more chocolate chips over the tops of each cookie with the remaining chocolate chips (as many as you want), and bake for 8-10 minutes or until cookies are nice and golden in colour.
Allow to cool onto a cooling rack for 5-10 minutes. Sprinkle with sea salt flakes (optional)
Notes
*Granulated sugar may be used, or natural granulated sweetener to reduce calories/carbs further)*The Greek yogurt you use MUST be full fat. Non fat or reduced fat yogurts will alter the texture of your cookies!*If your hands get sticky with dough, lightly wet your palms and fingertips with a small amount of water before moving onto the next cookie.