In a medium-sized bowl, combine the flour, salt, and baking soda. Whisk together to fully combine.
Mix the sugar, egg, milk, coconut oil, and vanilla extract in a separate bowl until combined. Carefully add the dry ingredients and mix until smooth, being careful not to over-mix.
Fold in the chocolate chips until fully combined.
Preheat your oven to 375 F. Prepare a mini muffin pan by spraying with non stick spray.
Carefully scoop the muffin mixture into the pan, about 2/3 full. Place in the oven, and bake for 10-12 minutes or until a toothpick comes out clean.
Remove from the oven, and let the muffins cool for about 5 minutes. Transfer muffins to a wire cooling rack to cool the rest of the way.