Quick Microwave Caramel Mug Flan
Desserts

Quick Microwave Caramel Mug Flan

ML
By Marie Lefebvre · Updated October 18, 2026

Craving something sweet but short on time? This silky caramel mug flan is ready in under 10 minutes using just your microwave. Perfectly portioned for one, it's creamy, rich, and surprisingly elegant for such a speedy treat.

Prep⏱️ 5 min
Servings👥 1 servings
Difficulty📊 Very Easy
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🛒 Ingredients

1 servings

1
  • 1 tablespoon sugar
  • 1 tablespoon water
  • 1 whole egg
  • 8 tablespoons whole milk
  • 8 tablespoons sweetened condensed milk

Directions

  1. 1

    In a large microwave-safe mug, combine the sugar and water. Microwave at 80% power for 30 seconds. If the caramel hasn't formed yet, continue in 30-second intervals until a golden amber color is achieved.

  2. 2

    In a separate heat-resistant mug or cup, beat the egg thoroughly. Add the milk and condensed milk, then whisk together until smooth and fully combined.

  3. 3

    Gently pour the egg and milk mixture over the caramel in the first mug without stirring.

  4. 4

    Microwave at 80% power for 1 minute. If the center is still very wobbly, cook in 15-second intervals until the edges are set and the center has just a slight jiggle.

  5. 5

    Let cool to room temperature, then refrigerate for at least 15 minutes. Run a knife around the edge and unmold onto a small plate to serve.

💡 Chef's Tip

Watch the caramel closely — it can go from golden to burnt in seconds in the microwave. Let the egg and milk mixture rest for 1 minute before pouring to allow air bubbles to settle, ensuring a smoother flan.