Chef John's Blueberry Dutch Baby

Ingredients

• 1/2 cup packed all-purpose flour
• 1/4 teaspoon fine salt
• 1/4 teaspoon pure vanilla extract
• 3 large eggs, at room temperature
• 2/3 cup milk, at room temperature
• 3 tablespoons clarified butter, melted
• 1/3 cup fresh blueberries, or more to taste
• 1 tablespoon unsalted butter, melted
• 1/2 Meyer lemon, juiced
• 2 tablespoons powdered sugar, or to taste
• 2 tablespoons maple syrup, or to taste