These French Onion Tartlets are everything you love about classic French onion soup β but in buttery, handheld form. Each bite is packed with caramelized onions kissed withΒ Java Momma Brazil Medium Coffee, woodsy sautΓ©ed mushrooms, and creamy Gruyere cheese. The perfect little appetizer for cozy holiday gatherings or any time you want to impress without stress.

Why Youβll Love It
- Elegant, bite-sized version of a French classic
- Rich layers of caramelized onions and earthy mushrooms
- Coffee adds depth and warmth β your guests will never guess the secret!
- Make-ahead friendly and freezer-safe for easy entertaining
Makes: 12 tartlets β’ Prep Time: 25 minutes β’ Cook Time: 25 minutes β’ Total: 50 minutes
Ingredients
- 3 tbsp butter, divided
- 2 onions, halved and thinly sliced
- 1/2 tsp salt
- 1/4 tsp Pennsylvania Pepper
- 1/4 cup Java Momma Brazil Medium Coffee
- 1/4 cup beef stock
- 6 oz baby bella mushrooms, diced
- 2 cloves garlic, crushed
- 1 tbsp Tuscan Spice Blend
- 1 (14β15 oz) rolled pie crust package
- 1 3/4 cups grated Gruyere cheese
- 1 egg, whisked (for egg wash)
Directions
- In a large skillet over medium-high heat, melt 1Β½ tbsp butter. Add onions, salt, and Pennsylvania Pepper. Reduce heat to medium and cook, stirring often, until deeply caramelized (about 15 minutes).
- Pour in the brewed coffee and let it bubble briefly, then add beef stock. Simmer until mostly absorbed. Transfer onions to a bowl to cool.
- In the same skillet, melt remaining butter over medium-high heat. Add mushrooms, a pinch of salt and pepper, and sautΓ© until golden. Stir in garlic and Tuscan Spice Blend until aromatic. Transfer to a paper towel-lined plate to cool.
- Once both mixtures are cool, combine them in a bowl.
- Preheat oven to 400Β°F. Unroll pie crusts on a floured surface. Cut 3.5-inch circles (reroll scraps as needed) to make 12 rounds. Press into greased muffin tin wells and prick centers lightly with a fork.
- Sprinkle a little Gruyere in each cup, then spoon in onion-mushroom mixture. Top with remaining cheese and brush edges with egg wash.
- Bake 10β12 minutes or until crust is deep golden brown. Cool slightly before removing. Serve warm or room temperature.
Tips & Tidbits
- Make ahead: Prep onions and mushrooms a day ahead β theyβll be ready to fill and bake.
- Cheese swaps: Try provolone, Edam, or Asiago if youβre out of Gruyere.
- Reheating: Freeze up to a week ahead; reheat at 325Β°F for 5 minutes to serve fresh.