Get the App

Recipes

Find a Recipe Blue Ribbon Recipes Pinch It!™ Feed Browse All Recipes

Editorial

Food Bites & Articles Videos What is a Blue Ribbon? Meet the Test Kitchen

Community

Member Recipes Groups Sweepstakes Contests Shopping

onion mushroom tart

(1 rating)
Irit_Birman avatar
Blue Ribbon Recipe by
Irit Birman
@Irit_Birman
The Villages, FL

Easy to make yet very delicious.

Blue Ribbon Recipe

Need a vegetarian appetizer option for a holiday party? This onion mushroom tart is a sophisticated appetizer that's not hard to make. The onions have a wonderful caramelized flavor. Baby Bella mushrooms add a layer of heartiness to the tart. Sauteing the onions and mushrooms with a splash of wine brings another layer of sweetness and a slight tang. Gruyere cheese adds another earthy flavor to the tart. Store-bought puff pastry is the base for this savory tart and is super flaky once baked. Cut into squares for a lovely party appetizer.

— The Test Kitchen @kitchencrew
(1 rating)
yield 8 -10
prep time 30 Min
cook time 30 Min
method Bake

Ingredients For onion mushroom tart

  • 3 Tbsp
    olive oil, extra virgin
  • 2 lg
    onions, cut in half and sliced thin
  • 1 lb
    baby bella mushrooms, sliced
  • 1 tsp
    salt
  • 1/4 tsp
    pepper
  • 1/4 c
    white wine
  • 1 pkg
    puff pastry sheet, thawed
  • 1 lg
    egg + 1 Tbsp water beaten (egg wash)
  • 1 c
    grated Gruyère cheese

How To Make onion mushroom tart

  • Saute onions in oil.
    1
    Heat olive oil in a large saute pan. Add onions stirring continuously until they start to soften.
  • Add mushrooms, salt, and pepper. Add wine.
    2
    Add mushrooms, salt, and pepper. Stir until mushrooms release their liquid. Add wine and cook until almost all evaporate. Remove from heat and set aside.
  • Pressing puff pastry sheets together on a lined baking sheet.
    3
    Preheat oven to 350 F. Line a baking sheet with parchment paper. Unfold defrosted pastry sheets. Lay them side by side (along the long side) and press to seal.
  • Scoring the edges of the puff pastry.
    4
    With a sharp knife score a 1/2 inch border around the pastry (don't cut all the way).
  • Sides of the puff pastry lifted.
    5
    Lift the sides.
  • Mushroom mixture added to the puff pastry.
    6
    Spread mushroom mixture on pastry.
  • Topped with Gruyere cheese.
    7
    Top with the Gruyére cheese.
  • Brushing puff pastry with an egg wash.
    8
    Brush the edges of the pastry with the egg wash.
  • Baking the tart.
    9
    Bake for 25-35 minutes until golden brown.
  • Last Step: Don't forget to share! Make all your friends drool by posting a picture of your finished recipe on your favorite social network. And don't forget to tag Just A Pinch and include #justapinchrecipes so we can see it too!
ADVERTISEMENT