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Rooibos Caramel Flan

By • Updated September 2026
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This silky baked custard marries the gentle, honeyed notes of rooibos with a mirror-smooth caramel topping. The naturally caffeine-free South African tea lends a subtle sweetness and warm amber hue to the milk, making it ideal for an elegant dessert that won't keep anyone awake. A proper flan tin with a flat base and low sides is essential here—it conducts heat evenly for that signature wobble and makes unmoulding effortless.

Infusing the milk gently coaxes out rooibos's natural vanilla and nutty undertones without any bitterness, and the iron-rich terroir character adds depth to the custard. Serve chilled with the caramel pooled around each slice for a sophisticated finish that showcases why herbal teas shine in the pastry kitchen.

Rooibos Caramel Flan
Prep Time25 mins
Cook Time45 mins
ServingsServes 6
DifficultyMedium

Ingredients

  • 350 ml Whole Milk
  • 3 tbsp loose-leaf Rooibos Tea (or 4 teabags)
  • 4 large Eggs
  • 75 g Caster Sugar
  • 1 tsp Vanilla Extract
  • 150 g Granulated Sugar (for caramel)
  • 3 tbsp Cold Water
Nutrition per serving:
Calories: 245
Fat: 8g
Sugar: 34g
Protein: 7g

Instructions

1
Infuse: Warm the milk in a small saucepan over medium heat until steaming but not boiling. Remove from the heat, stir in the rooibos tea, cover and steep for 10 minutes. Strain through a fine sieve and let cool to room temperature.
2
Make Caramel: Put the granulated sugar and cold water in a heavy-based saucepan over medium heat. Swirl gently—do not stir—until the sugar dissolves and the syrup turns deep amber, about 8–10 minutes. Immediately pour into the base of a 20 cm flan tin, tilting to coat evenly. Work quickly; the caramel will set within seconds.
3
Whisk Custard: Preheat your oven to 160 °C (140 °C fan). In a large bowl, whisk together the eggs, caster sugar and vanilla until smooth. Gradually pour in the cooled rooibos-infused milk, whisking gently to avoid too many bubbles.
4
Assemble: Pour the custard mixture over the set caramel in the flan tin. Place the tin in a deep roasting tray and fill the tray with enough boiling water to come halfway up the sides of the tin—this bain-marie ensures even, gentle cooking.
5
Bake: Bake for 40–45 minutes, until the custard is set around the edges but still has a slight wobble in the centre. Remove from the water bath and let cool completely, then refrigerate for at least 4 hours or overnight.
6
Unmould: Run a thin knife around the edge of the flan. Place a rimmed serving plate over the tin, invert confidently, and give a firm shake. The flan should release cleanly with the caramel pooling around it. Slice and serve chilled.

🫖 Equipment You'll Need

A proper flan tin—shallow, round, and typically 20–24 cm with a flat base—is the secret to a perfect caramel custard. Its low sides and even heat distribution allow the custard to set uniformly, while the flat base makes unmoulding clean and drama-free, ensuring your golden caramel topping stays intact. For a guide to the best models, see our Best Flan Tins for Caramel Custards and Tea-Infused Desserts.

See our flan tin picks →

Expert Tip: Avoid Bubbles

For a flawlessly smooth custard, strain the whisked mixture through a fine sieve before pouring it into the tin. This catches any eggy threads and air bubbles that would mar the finished texture.

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