Steaming “en papillote” ensures that none of the nutrients are lost during the cooking process.

EatingWell Test Kitchen


Ingredient Checklist


Instructions Checklist
  • Preheat oven to 400 degrees F. Cut 4 pieces of parchment paper or foil 12 inches by 16 inches. Fold in half to form an 8-by-12-inch rectangle, then cut into a half-heart shape as you would a valentine.

  • Place a chicken breast in the center of one half of each opened paper heart. Spread mustard evenly over chicken breasts. Distribute leeks, carrots and thyme over the chicken. Season with salt and pepper. Seal the packages and place them on a baking sheet.

  • Bake until the packages are puffed, 10 to 12 minutes. (Open one package to check that the chicken is no longer pink inside.) Transfer to individual plates and let diners open their own packages.

Nutrition Facts

169 calories; protein 24.2g; carbohydrates 10.3g; dietary fiber 2g; sugars 3.6g; fat 3.2g; saturated fat 0.8g; cholesterol 62.7mg; vitamin a iu 5892IU; vitamin c 8.6mg; folate 37.6mcg; calcium 54.7mg; iron 2.1mg; magnesium 38.9mg; potassium 381.5mg; sodium 259.6mg; thiamin 0.1mg.

Reviews (2)

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2 Ratings
  • 5 star values: 2
  • 4 star values: 0
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 0
Rating: 5 stars
This was really simple to make and tasted great. I made it for my husband and brother-in-law.. they both raved about how great it tasted and the presentation was nice as well. I forgot to add thyme and this still turned out wonderfully although on next time I will add it. Read More
Rating: 5 stars
It was so healthy clean and filling but it took longer than 12 minutes to cook through. I baked them for 24 minutes. Read More