Rich Gateau Chocolat Baked in a Toaster Oven (70g portion)

A full-scale gateau chocolat easily made in a toaster oven, adjusted for 70g of chocolate. Use a metal mold and aluminum foil to prevent burning while baking.

Cooking Time 35 min
Calories 399 kcal (1 serving)
Published October 4, 2026
Servings 2 servings
Photo of Rich Gateau Chocolat Baked in a Toaster Oven (70g portion)

Cook's Notes

See the comments and selections added when this recipe was published.

These are notes from the person who cooked it, including recommendations and impressions.

Taste satisfaction

Loved it

How easy it was

Easy

Would cook again?

Yes

Did they arrange it?

No

Recommended moments

For guests

Cooking impression

Original language : Japanese

材料さえあれば混ぜて焼くだけでできるスイーツ最高です!

This review is shown in its original language.

Cooking Steps

  1. 1

    Line a metal mold with parchment paper. Preheat the toaster oven.

    Advice : Preheating properly helps the batter rise better.

  2. 2

    Place finely chopped dark chocolate and unsalted butter in a heat-resistant bowl. Microwave (600W) for 40–50 seconds and stir to melt completely using residual heat.

    Advice : When using a microwave, the trick is to heat it in 10-second intervals while checking to ensure it doesn't burn.

    Heating 50 sec
    Ingredients
    Dark chocolate for baking 70g
    Unsalted butter 28g
  3. 3

    Add the granulated sugar and then the egg to the melted chocolate, mixing well with a whisk after each addition.

    Advice : Mixing until the granulated sugar is completely dissolved will improve the final texture.

    Ingredients
    Granulated sugar 21g
    Egg (S size) 1 count
  4. 4

    Sift in the cake flour and cocoa powder in that order. Switch to a spatula and fold gently until no floury streaks remain.

    Advice : If you overmix with a whisk, the cake will become tough, so the key is to fold it in with a cutting motion.

    Ingredients
    Cake flour 14g
    Cocoa powder 7g
  5. 5

    Pour the batter into the mold and bake in the toaster oven for about 5 minutes first. Once the surface is browned, cover with aluminum foil and bake for another 10 to 15 minutes.

    Advice : Since the heat source is close in a toaster oven, aluminum foil is essential to prevent burning.

    Bake in toaster oven 15 min
  6. 6

    Once cooled slightly, remove from the mold and chill thoroughly in the refrigerator.

    Advice : Leaving it for a day allows the flavors to settle, making it moister and more rich.

    Chill in refrigerator 60 min

Rich Gateau Chocolat Baked in a Toaster Oven (70g portion)

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