Quick Recipe Version (TL;DR)

Yield: 4 servings
Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes

Quick Ingredients

3 Tbsp unsalted butter (for the pan)
4 large eggs, at room temperature
3/4 cup (90 g) all-purpose flour
3/4 cup (180 ml) whole milk, at room temperature
1/2 cup (about 40 g) finely grated Parmigiano-Reggiano
2 Tbsp chopped fresh parsley
1 tsp chopped fresh thyme (or 1/2 tsp dried)
3/4 tsp kosher salt, 1/4 tsp black pepper
10 oz (280 g) cremini or button mushrooms, sliced
2 Tbsp olive oil + 1 Tbsp butter
3 garlic cloves, thinly sliced or minced
4 cups lightly packed baby spinach
1 Tbsp fresh lemon juice
1/3 cup shaved Parmigiano-Reggiano, for topping
Optional: pinch red pepper flakes, extra herbs for garnish

Do This

1. Heat oven to 425°F (220°C). Place a 10–12 inch cast-iron skillet in the oven to preheat.
2. Blend or whisk eggs, milk, flour, grated Parmesan, herbs, salt, and pepper until very smooth; rest 10 minutes.
3. Carefully melt 3 Tbsp butter in the hot skillet, swirl to coat, then pour in the batter.
4. Bake 20–22 minutes, without opening the oven, until puffed and deep golden at the edges.
5. While it bakes, sauté mushrooms in olive oil and butter until browned; add garlic, spinach, salt, and pepper.
6. Wilt spinach, season with lemon juice and optional red pepper flakes.
7. Top the hot Dutch baby with the mushroom-spinach mixture and shaved Parmesan; garnish with herbs and serve immediately.

Why You’ll Love This Recipe

All the drama of a puffed Dutch baby with the cozy flavors of garlic, mushrooms, and Parmigiano.
Perfect for brunch, light dinner, or a special breakfast that still feels easy and doable.
Uses simple, familiar ingredients but looks restaurant-level impressive.
Flexible base: swap in your favorite vegetables, herbs, or cheeses.

Grocery List

Produce: Cremini or button mushrooms, garlic, baby spinach, fresh parsley, fresh thyme, lemon (optional), chives or extra herbs for garnish (optional).
Dairy: Eggs, whole milk, unsalted butter, Parmigiano-Reggiano (block for grating and shaving).
Pantry: All-purpose flour, olive oil, kosher salt, black pepper, red pepper flakes (optional, but nice).

Full Ingredients

For the Savory Parmesan–Herb Dutch Baby

4 large eggs, at room temperature
3/4 cup (90 g) all-purpose flour, spooned and leveled
3/4 cup (180 ml) whole milk, at room temperature
1/2 cup (about 40 g) finely grated Parmigiano-Reggiano
2 Tbsp finely chopped fresh flat-leaf parsley
1 tsp finely chopped fresh thyme leaves (or 1/2 tsp dried thyme)
3/4 tsp kosher salt (use 1/2 tsp if using table salt)
1/4 tsp freshly ground black pepper
Optional but nice: 1/8 tsp garlic powder or onion powder
3 Tbsp unsalted butter (for the skillet)

For the Mushroom, Garlic & Spinach Topping

2 Tbsp olive oil
1 Tbsp unsalted butter
10 oz (280 g) cremini or button mushrooms, cleaned and sliced
3 garlic cloves, thinly sliced or minced
4 cups lightly packed baby spinach (about 4 oz / 115 g)
1 Tbsp fresh lemon juice (about 1/2 lemon), or to taste
1/2 tsp kosher salt, plus more to taste
1/4 tsp freshly ground black pepper, plus more to taste
Pinch red pepper flakes (optional)

For Serving and Garnish

1/3 cup shaved Parmigiano-Reggiano (use a vegetable peeler on a block of cheese)
Extra chopped fresh parsley or chives
Freshly ground black pepper

Step-by-Step Instructions

Step 1: Preheat the oven and skillet

Place a 10–12 inch cast-iron skillet (or another heavy, oven-safe skillet with high sides) on the middle rack of your oven. Preheat the oven to 425°F (220°C). Let the skillet heat with the oven for at least 15 minutes so it is very hot when the batter goes in. This intense heat is what helps the Dutch baby puff dramatically.

While the oven heats, gather and measure all of your ingredients. For best results, make sure the eggs and milk are at room temperature; cold ingredients can prevent a good rise.

Step 2: Make the Parmesan–herb batter

In a blender, add the eggs, milk, flour, grated Parmigiano-Reggiano, parsley, thyme, salt, pepper, and optional garlic or onion powder. Blend on high for 20–30 seconds, until the batter is completely smooth and slightly frothy. Scrape down the sides if needed and blend again briefly.

If you do not have a blender, whisk the eggs in a large bowl until very well combined and slightly pale. Whisk in the milk. Sift or sprinkle in the flour while whisking constantly to avoid lumps. Finally, whisk in the grated Parmesan, herbs, salt, pepper, and optional seasonings.

Let the batter rest at room temperature for about 10 minutes. This helps the flour hydrate and improves the texture.

Step 3: Heat the butter and pour the batter

Once the oven and skillet are fully preheated, carefully remove the hot skillet and close the oven door to keep the heat in. Add the 3 Tbsp unsalted butter to the skillet. The butter should melt quickly and sizzle. Swirl the pan so the bottom and sides are thoroughly coated. If any spots remain dry, tilt the pan until they are covered.

Give the batter a quick stir or pulse, then immediately pour it into the hot, buttered skillet. Do not scrape the bowl too aggressively; just pour and let it settle. Return the skillet to the oven right away.

Step 4: Bake the Dutch baby until puffed and golden

Bake the Dutch baby for 20–22 minutes, until it is dramatically puffed, the edges are deep golden brown, and the center is set but still slightly custardy.

Resist the urge to open the oven door during the first 15 minutes of baking. Sudden temperature drops can cause the Dutch baby to deflate prematurely. After 15 minutes, you can take a quick peek through the glass if you like, but keep the door opening to an absolute minimum.

Step 5: Sauté the mushrooms and garlic

While the Dutch baby bakes, make the topping. In a large skillet over medium-high heat, add the olive oil and 1 Tbsp butter. When the butter has melted and the mixture is shimmering, add the sliced mushrooms in an even layer. Let them cook undisturbed for 3–4 minutes so they begin to brown on one side.

Stir and continue cooking for another 4–5 minutes, until the mushrooms have released their moisture and turned deep golden in spots. Season with a pinch of salt and pepper. Lower the heat to medium, add the garlic, and cook for 30–60 seconds, stirring frequently, just until fragrant. Do not let the garlic burn.

Step 6: Wilt the spinach and finish the topping

Add the baby spinach to the skillet with the mushrooms and garlic. It will look like a lot at first, but it will quickly wilt down. Toss gently with tongs or a spatula for 1–2 minutes, until the spinach is just wilted but still bright green.

Turn off the heat. Stir in the lemon juice and a pinch of red pepper flakes, if using. Taste and adjust seasoning with more salt and pepper as needed. Keep the mixture warm on the lowest possible heat or simply cover the pan until the Dutch baby is ready.

Step 7: Assemble and serve immediately

When the Dutch baby is deeply golden and puffed, carefully remove the skillet from the oven. It will begin to deflate slightly as it cools; this is normal. Working quickly, spoon the warm mushroom, garlic, and spinach mixture into the center, leaving some of the crisp edges exposed for contrast.

Top generously with shaved Parmigiano-Reggiano, a sprinkle of fresh herbs, and a few twists of black pepper. Slice into wedges and serve right away while the edges are still crisp and the center is tender and warm.

Pro Tips

Room temperature ingredients: Let eggs and milk sit out for 20–30 minutes before starting. Warm ingredients puff better than cold.
Use a hot, heavy pan: Cast iron is ideal. Make sure the skillet is fully preheated; this helps the batter “grab” the sides and climb up.
Blend for smoothness: A blender makes a silky, lump-free batter that rises beautifully. If whisking by hand, really go for it and whisk until very smooth.
Do not open the oven early: Keep the door shut for at least the first 15 minutes to avoid losing heat and deflating the Dutch baby.
Work quickly to top and serve: Have the mushroom-spinach topping ready so you can pile it on as soon as the Dutch baby comes out of the oven.

Variations

Caramelized onion and Gruyère: Swap the mushroom-spinach topping for slowly caramelized onions and grated Gruyère cheese. Use the same batter but replace half the Parmesan with Gruyère.
Bacon, leek, and cheddar: Cook chopped bacon until crisp, then sauté sliced leeks in the drippings. Top the Dutch baby with the bacon-leek mixture and sharp cheddar instead of Parmigiano.
Roasted tomato and basil: Roast cherry tomatoes with olive oil, salt, and pepper. Top the Dutch baby with the tomatoes, fresh basil, and Parmesan for a lighter, summery version.

Storage & Make-Ahead

This savory Dutch baby is at its absolute best straight from the oven, when the edges are puffed and crisp. However, leftovers can be stored. Allow any remaining Dutch baby and topping to cool completely. Store slices in an airtight container in the refrigerator for up to 2 days. Reheat on a baking sheet in a 350°F (175°C) oven for 8–10 minutes, until warmed through; the texture will be softer but still tasty.

You can make the batter up to 4 hours ahead and keep it covered in the refrigerator. Let it sit at room temperature and whisk briefly before baking. The mushroom-spinach topping can also be prepared a few hours ahead and gently reheated in a skillet over low heat just before serving.

Nutrition (per serving)

Approximate values per serving (1 of 4): about 450 calories, 30 g fat, 18 g protein, 25 g carbohydrates, 2 g fiber, and 650 mg sodium. These numbers will vary based on exact ingredients and brands used.

Savory Parmesan Herb Dutch Baby With Mushrooms and Spinach