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Perfect Umami Puffs

Perfect Umami Puffs

Full of umami packed ingredients, these puffs are perfect for a party appetizer or side dish.
Course Appetizer, Side Dish
Cuisine Japanese
Prep Time 1 hour 50 minutes
Cook Time 10 minutes
Total Time 2 hours
Servings 12 pieces
Calories 305kcal


Carmelize the onions

  • Thinly slice the onions and heat a large saucepan over medium-low heat. Melt the butter and add the sliced onions. Stir occasionally, and cook until onions are soft, caramelized, and a nice brown color.
    If frond is sticking to the bottom of the pan and won't come up with stirring, add a small splash of balsamic vinegar (or chicken stock or white wine), and deglaze the pan.
    Onions are done when they are very soft and sweet, about 40 minutes to an hour.
    2 large onions, 1 T butter, balsamic vinegar, white wine, or chicken stock


  • Preheat oven to 425 degrees F.
  • Take puff pastry out of freezer and set aside to thaw.
    2 sheets puff pastry


  • Chop the bacon and cook over medium heat until crispy.
    5 slices thick cut bacon
  • Quarter (or cut into sixth for larger pieces) the mushrooms and saute in 1 T of left over bacon grease (or regular oil such as canola) over medium heat.
    10 crimini mushrooms
  • When softened, add balsamic vinegar and dried thyme and stir, cooking for a minute or two longer. 
    1 t balsamic vinegar, 1 t dried thyme


  • When puff pastry is sufficiently defrosted, unfold and lay out on a cutting board.
  • Cut each sheet into 6 squares. Taking a paring knife, cut another square inside each square, about 1/2 inch in from each side.
    We want to set the filling on the smaller square and have the sides puff up around it. 
  • Beat the egg with a splash of water and using a pastry brush, brush the egg wash onto the puff pastry (you can just do the outer portion since the middle will be covered with the onion mixture).
    1 egg


  • Combine caramelized onions, bacon, and mushrooms in a bowl, and spoon onto the centers of each puff. 
    parmesan cheese



Feel free to change the amounts of each ingredient according to taste. 


Calories: 305kcal | Carbohydrates: 21g | Protein: 6g | Fat: 22g | Saturated Fat: 6g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 12g | Trans Fat: 1g | Cholesterol: 24mg | Sodium: 209mg | Potassium: 164mg | Fiber: 1g | Sugar: 2g | Vitamin A: 31IU | Vitamin C: 1mg | Calcium: 17mg | Iron: 1mg