Using a small pairing knife, stem the cherries, then pit them over a bowl placed in your kitchen sink. This makes for an easier cleanup!
In a medium bowl, stir together the flour, baking powder, and salt. In a large bowl, whisk together the sugar, melted butter, eggs, and vanilla. In a small bowl, stir together the buttermilk and lemon juice.
Add half the flour mixture to the sugar mixture, then add the buttermilk mixture, then add the remaining flour mixture, stirring after each addition until well combined.
Using a small pairing knife, cut each cherry in half and then those pieces in half again. Using a spatula, fold the cherry pieces into the batter.
Scoop ¼ cup of the batter into each cup of the prepared muffin tins. Sprinkle each muffin with ½ teaspoon of the pure cane turbinado sugar.
Bake until the muffins are lightly golden brown and a toothpick inserted into the center comes out clean, about 20 minutes. Carefully remove the muffin tin from the oven, and let it cool on a wire rack for about 15 minutes before serving. Repeat as needed with the rest of the batter and pure cane turbinado sugar.
Store the muffins in an airtight container lined with paper towels at room temperature for up to 3 days.