Step 1: Preheat your oven to 425°F (220°C).
Step 2: In your oven-safe skillet, add 4 tablespoons of salted butter and place it in the oven to melt.
Step 3: In a large mixing bowl, whisk together the eggs until frothy. Add milk, flour, salt, and vanilla extract. Mix until smooth, then stir in the lemon zest.
Step 4: Gently fold in the blueberry jam and blueberries into the batter.
Step 5: Pour the batter into the hot skillet with melted butter.
Step 6: Bake for 20-25 minutes until golden brown and puffed up.
Step 7: Dust with powdered sugar and drizzle with maple syrup before serving.
