Preheat oven to 350 degrees. Line a muffin tin with paper liners or grease well. Set aside.
In a medium bowl, whisk together the flour, salt, baking powder, and sugar.
In a small bowl, combine canola oil, egg, buttermilk, and vanilla together. Use a fork or whisk and mix until well combined.
Incorporate the wet ingredients into flour mixture. Add slowly and gently stir, you don’t want to over mix. The batter will be thick. Carefully fold in the strawberries.
Fill each muffin cup half way with batter. Next, add a small spoonful of Nutella to each muffin cup. Cover the Nutella filling with the remaining batter. Sprinkle each muffin with turbinado sugar.
Bake muffins for 17-20 minutes, or until muffins are golden brown and a toothpick comes out clean. Remove the muffins from the pan and let cool on a cooling rack.