There’s a little place I love to visit every fall, tucked away in the woods where the leaves turn into a riot of colors. The smell of earthy mushrooms wafts through the air, and it always reminds me of family gatherings around the dinner table. One dish that warms my heart and often finds its way to those gatherings is my Upside-Down Cream of Mushroom Tartlets. They’re golden, savory bites of pure comfort, and I can’t wait to share them with you!
So why mushroom tartlets, you might ask? Well, the creamy, rich filling combined with the buttery, flaky crust is just the kind of cozy dish that makes you feel all warm inside. Plus, they’re adorable and can be served as appetizers at a fancy dinner or enjoyed as a simple weeknight treat. Trust me, your kitchen will smell amazing, and you’ll find every reason to whip them up. Let’s dive into why you’ll love this recipe!
Why You’ll Love This Recipe
- Perfect for a quick weeknight dinner or elegant appetizer.
- Budget-friendly, using simple yet delicious ingredients.
- Utterly comforting with its rich, creamy mushroom filling.
- Customizable with different toppings or seasonings!
Ingredients
Here’s what you need to gather for your Upside-Down Cream of Mushroom Tartlets:
- 1 cup all-purpose flour
- 1/2 cup unsalted butter (cold, diced into small pieces) – for that flakiness!
- 1/4 cup cold water
- 1 cup mushrooms (preferably a mix of cremini and shiitake), finely chopped
- 1 small onion, finely chopped
- 2 cloves garlic, minced (fresh garlic adds more punch than powdered)
- 1/2 cup heavy cream
- 1/2 cup grated cheese (Gruyère or cheddar work best)
- 2 teaspoons thyme (fresh or dried)
- Salt and pepper to taste
- Optional: Fresh parsley for garnishing
Step-by-Step Instructions
Ready, set, cook! Here’s how to make these delightful tartlets:
- Prepare the dough: In a large bowl, mix the flour and cold diced butter together using your fingers or a pastry cutter until you get a crumbly texture. Don’t overmix it—this is key for that flaky crust!
- Add the water: Gradually pour in the cold water and mix until the dough just comes together. Wrap it in plastic wrap and refrigerate for about 30 minutes. This helps the gluten relax and keeps your tartlets tender.
- Preheat your oven: Preheat it to 375°F (190°C). Trust me, that warm oven will be a hug for all those flavors!
- Sauté the filling: While the dough is chilling, heat a skillet over medium heat and add a drizzle of olive oil. Once hot, toss in the chopped onion and garlic. Sauté until they’re soft and fragrant, about 5 minutes.
- Add the mushrooms: Next, add the chopped mushrooms to the skillet, season with salt and pepper, and let them cook down for about 8-10 minutes until they’re golden brown and tender. Your kitchen will smell heavenly right about now!
- Mix the filling: Once the mushrooms are ready, stir in the heavy cream, thyme, and grated cheese. Give it a gentle mix and remove from heat. You want it creamy and luscious!
- Roll out the dough: After the dough has chilled, take it out and roll it out on a floured surface until it’s about 1/8 inch thick. Use a round cutter (or a glass) to cut out circles that will fit into your muffin tin. Don’t worry if they’re not perfect!
- Assemble the tartlets: Grease your muffin tin and gently press the dough circles into each cup, forming a little cup shape. Now, spoon in the mushroom filling, filling it generously but not overflowing.
- Bake: Bake the tartlets in the preheated oven for about 20-25 minutes, or until the tops are golden brown and the filling is bubbling happily.
- Cool slightly: Once out of the oven, let them sit for a few minutes before carefully removing them from the tray. You can use a butter knife to gently loosen the edges if needed.

Pro Tips & Variations
Feeling a bit adventurous? Here are some fun twists on the original recipe:
- Spice it up: Add a pinch of red pepper flakes to the mushroom filling for a little heat!
- Herb swap: Experiment with different herbs like rosemary or oregano for varied flavor.
- Cheese plays: Swap out the Gruyère for some tangy feta or creamy goat cheese for a different taste experience.
- Vegetarian Bliss: Make it a fully vegetarian dish by using vegetable broth instead of chicken broth, and adding some spinach or kale to the filling!
Serving Suggestions
These Upside-Down Cream of Mushroom Tartlets are as versatile as your imagination! I love serving them warm, straight from the oven, with a simple side salad dressed in lemon vinaigrette. The tartness of the dressing perfectly balances the richness of the mushrooms. If you want to make it a cozy night in, pair it with a hearty bowl of soup or a chilled glass of white wine. They also shine as a party appetizer—just pop them onto a pretty platter and let the compliments roll in!

Storage Tips
Got leftovers? No worries! These tartlets can be refrigerated in an airtight container for up to three days. If you want to save them for later, they freeze beautifully! Just make sure they’re fully cooled before placing them in a freezer-safe container. You can freeze them for up to a month.
When you’re ready to enjoy them again, simply pop them in a preheated oven at 350°F (175°C) for about 10-15 minutes until warmed through. Yum!
FAQs
Can I use other types of mushrooms for this recipe?
Absolutely! Feel free to get creative with your mushroom choices. Button mushrooms, portobellos, or even wild mushrooms add unique flavors. Just make sure they’re finely chopped, so they fit well in the tartlet.
What if I don’t have heavy cream?
No problem! You can substitute it with half-and-half or even a mixture of milk and a tablespoon of butter for a similar richness, just keep in mind that it will be less creamy than using heavy cream.
Can I make the tartlet dough in advance?
Yes! You can prepare the dough up to a day in advance. Just wrap it tightly in plastic wrap and store it in the fridge. You might need to let it sit at room temperature for a few minutes before rolling it out.
How do I know when my tartlets are done baking?
Keep an eye out for that beautiful golden brown color on the tops! The filling should also be bubbling slightly. If you’re unsure, a toothpick inserted in the middle can help check if the filling is set.
Conclusion
I hope you enjoy making these incredible Upside-Down Cream of Mushroom Tartlets as much as I do! They’re the kind of dish that brings everyone together—imagine sharing them with family and friends while surrounded by laughter and good cheer. If you try the recipe, I’d love to hear how it turns out! Leave a comment and share your thoughts or any fun variations you tried. Happy cooking!






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