Preheat oven to 400 degrees. Line a muffin pan with 9 paper liners or spray with cooking spray. Set aside.

In a medium bowl, whisk together flour, salt, and baking powder. (use either white whole wheat flour or kamut)

Zest the peel of the two limes. In a small bowl, add the sugar and the zest.  Rub sugar and zest together until fragrant. Add sugar and zest to the flour mixture. Whisk ingredients together.

In a glass measuring cup or small bowl, mix coconut oil, egg, buttermilk, 1 tablespoon of lime juice (by squeezing your lime), and vanilla extract together.

Pour the wet ingredients over the flour mixture. Slowly stir together, the batter will be thick. Don’t over mix. Gently fold in the blackberries.

Fill 9 muffin cups with the batter.

Bake muffins for 15-20 minutes, or until muffins are golden brown and a toothpick comes out clean. Let muffins cool on a cooking rack.