Lemon Muffins

1 3/4 cup flour
3/4 cup sugar
2 1/2 tsp baking powder
1/4 tsp salt
3/4 cup ricotta cheese
1/2 cup water
1/4 cup olive oil
2 tbsp grated lemon rind
juice from 1 large lemon
1 egg, slightly beaten
turbinado sugar, for sprinkling

Preheat oven to 375.
In a large bowl, combine the flour, sugar, baking powder, and salt.
In a separate bowl, stir together the ricotta cheese, water, olive oil, lemon rind, lemon juice, and egg.
Pour the ricotta mixture into the flour mixture, and stir until combined.
Line a muffin pan with baking cups, and divide the batter evenly among the cups. 
Sprinkle the batter with the turbinado sugar.
Bake for 16-18 minutes, or until a toothpick inserted in the center of a muffin comes out clean.