- Why did foam collapse?
- Milk might be too low fat or overheated. Above 150°F milk protein structure collapses causing unstable foam. 2% or whole milk is best choice.
Café Au Lait with Milk Foam
This drink is a small luxury of home coffee brewing: meeting of hot, dark coffee and velvety milk foam. Not simple coffee with milk, but a texture game where light foam preps palate for full coffee taste. Secret lies in milk proteins: heating and aeration form elastic net trapping air bubbles.
Ingredients
3.5
oz
Strong Brewed Coffee
3/4
cup
Whole Milk (min 2%)
2
tsp
Sugar (optional)
1
tsp
Cocoa Powder (Dutch process)
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Equipment Needed
- Coffee Maker
- Milk Frother (handheld, battery or plunger)
- Tall Glass or Wide Cup
Allergen Information
Milk
Instructions
1
✓
Brew coffee with favorite method (moka pot, espresso machine), and stir in sugar immediately.
Tip: Sugar dissolves instantly in hot coffee, no need to ruin foam later with stirring.
2
✓
Heat milk to approx 140°F (just steaming, not boiling).
Tip: Milk sugar (lactose) tastes sweeter at this temp, creating harmony.
3
✓
Froth milk until volume increases and thick, fine bubbly cream forms.
Tip: 'Microfoam' is goal, not big bubbles. If big bubbles appear, tap vessel on table to pop them.
4
✓
Pour coffee into glass, then slowly pour in hot milk, holding back foam for end.
Tip: If done skillfully, milk mixes with coffee but foam stays on top (layering).
5
✓
Spoon remaining thick milk foam on top as 'cap'.
Tip: Foam insulates coffee, keeping it warm longer.
6
✓
Sift cocoa powder on top for garnish.
Tip: Cocoa bitterness provides exciting contrast with milk sweetness.
Recipe FAQ
Ingredients
- 3.5 oz Strong Brewed Coffee
- 3/4 cup Whole Milk (min 2%)
- 2 tsp Sugar (optional)
- 1 tsp Cocoa Powder (Dutch process)