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Creamy potato bake in a white baking dish with a spoon.
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French Onion Potato Bake

French Onion Potato Bake is easy comfort food. All the flavour without all the work, using a packet of French onion soup to season creamy layered potatoes.
Course Side
Cuisine International
Servings 6
Calories 386kcal
Author Lee-Ann Grace

Ingredients

  • 300 ml thickened cream
  • 1 sachet french onion soup mix (my full sachet was 29g)
  • 600 g potatoes peeled
  • 100 g cheddar cheese grated
  • 100 g bacon chopped
Metric - US customary

Instructions

  • Preheat oven to 180℃.
  • Combine thickened cream and french onion soup mix and mix well to incorporate, then set aside (I mix it right in the cream container if there's room).
    300 ml thickened cream, 1 sachet french onion soup mix
  • Using a mandolin or a sharp knife, slice potatoes to 2mm thick (see my notes).
    600 g potatoes
  • Place ⅓ of the potato slices in the base of a baking dish (mine is 26 x 18 x 5 cm - see my notes) - they will overlap, just try to spread them out evenly.
  • Scatter over ⅓ of the cheese, ½ of the bacon and drizzle over (roughly) 2 to 3 tablespoons of the cream mixture.
    100 g cheddar cheese, 100 g bacon
  • Repeat with the remaining ingredients, finishing with a layer of potatoes.
  • Pour the remaining cream mixture evenly over the potatoes.
  • Cover with a layer of baking paper (see my notes), then a layer of foil and bake for 1 hour 10 minutes, or until the potatoes in the middle are soft when tested with a sharp knife.
  • Scatter over remaining ⅓ of grated cheese and bake (uncovered) for 10-15 minutes until golden brown.
  • Allow to stand for 5 minutes before serving.

Video

Notes

  • Slicing the potatoes with a mandolin will give you nice, uniform slices. It's not necessary, but it makes the process faster. You are aiming for slices 2mm in thickness. The thicker they are, the longer they will take to cook. If you need to, pop the potato slices into a bowl of cold water to stop them browning, then drain before using.
  • Baking dish - mine was 26 x 18 x 5 cm, but a smaller dish will work too.
  • The layer of baking paper is to stop the potatoes sticking to the foil.
*Please note that the amount of calories per serve is provided as a guide only, as ingredients and cooking methods can vary greatly*

Nutrition

Calories: 386kcal | Carbohydrates: 20g | Protein: 9g | Fat: 31g | Saturated Fat: 17g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 9g | Trans Fat: 0.02g | Cholesterol: 85mg | Sodium: 252mg | Potassium: 516mg | Fiber: 2g | Sugar: 2g | Vitamin A: 915IU | Vitamin C: 20mg | Calcium: 164mg | Iron: 1mg