In a large bowl, combine the flour, baking powder, baking soda, and salt. Set aside.
In a medium bowl, whisk together yogurt, egg, milk, and vanilla extract.
Stir wet ingredients into dry ingredients until just combined. Gently fold in strawberries.
Melt butter in a large griddle pan. Alternatively, heat oil in pan.
Pour 1/4 cup of pancake mixture onto hot griddle. Cook for 2 minutes, or until edges begin to bubble and the bottom turns golden brown. Gently flip over to other side and let cook for another 1-2 minutes. Repeat with remaining batter until all pancakes are cooked.
For the strawberry sauce:
While the pancakes are cooking, prepare strawberry sauce (can also be made ahead of time). Combine the strawberries, water, sugar, and vanilla into a medium pot.
Bring mixture to a boil, then cover and simmer until soft and thick, about 15 minutes. Pour sauce over pancakes when ready to serve.