Preheat oven to 350°.
Combine flour, soda, and salt,set aside.
Melt coconut oil for about 20 seconds in a microwave.Remove .
Stir in cocoa powder and sugars
Add yogurt and vanilla, stirring to combine.
Add flour mixture, stirring until moist.
Drop by level tablespoons 2 inches apart onto baking sheet lined with parchment paper.
Bake at 350° for 10 minutes or until almost set.
Cool on pans 2 to 3 minutes or until firm.