In a large bowl, whisk together the flour, cornmeal, sugar, baking powder, baking soda, salt, and thyme.
In another bowl, whisk together eggs, milk, ricotta cheese, butter, honey, and lemon zest.
Pour the wet ingredients into the dry ingredients.
Stir until just combined. You can stir the blueberries in at this point, but I like to add them when the pancakes are cooking.
Heat a griddle over medium heat, spray with cooking spray or brush with melted butter. Spoon a ladle of batter onto it, top with the berries (if you didn't stir them through the batter), and cook for 2 to 3 minutes on one side. Flip over when bubbles form on the edges. Cook for an additional 2 minutes Serve with the blueberry sauce.