On a sunlit Hanoi morning, I chased the silky illusion of cà phê trứng with a spoon that barely woke the foam, the first sip carrying notes of sweet condensed milk and coffee that tasted like a folded memory from a street-side cafe. I found the same gentle warmth in a quiet bánh cuốn stall and let the foam drift through the air as if it were a tiny cloud of comfort. The ritual of whisking the egg into the hot brew became a small traveler's ceremony, a moment where hunger met curiosity and settled into a soft, velvety sigh.

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Ingredients

Serves

1

Protein

large

egg yolks

Dairy

g

sweetened condensed milk

g

unsalted butter (room temp)

Baking

tsp

cocoa powder

Seasoning

tsp

cinnamon

Sweetener

g

granulated sugar

Other

ml

strong hot coffee (espresso or strong drip)

approx. 0.5 cups / 4.1 fl oz

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Instructions

1
Brew 120 ml very strong hot coffee (espresso or strong drip) and pour into a warmed cup.
2
Separate 1 egg yolk into a bowl and add 20 g condensed milk, 5 g sugar and 5 g butter.
3
Whisk the yolk mixture vigorously by hand or with an electric whisk until pale, thick and frothy (about 2–3 minutes).
4
Spoon the whipped egg cream over the hot coffee to form a layered top.
5
Dust cocoa powder across the foam (use a stencil for a pattern) and optionally a light sprinkle of cinnamon.
6
Serve immediately with a small spoon; stir to combine as you drink.