Three Cheese-Stuffed Squash Blossoms

Ingredients

• 3/4 cup fresh ricotta
• 1/2 cup coarsely grated fresh mozzarella
• 3 tablespoons finely grated parmigiano reggiano
• 1 egg yolk
• 3/4 cup + 1 tablespoon all-purpose flour
• 1/4 teaspoon freshly grated nutmeg
• kosher salt and freshly ground pepper
• vegetable oil, for frying
• 1/4 cup fine cornmeal
• 3/4 - 1 cup beer (a summer ale works nicely)
• 1 lemon
• 2 tablespoons fresh thyme leaves, for garnish
• maldon or other flaky sea salt, for garnish