How to Make Café au Lait : Step-by-Step Guide

If you’ve ever ordered a café au lait in a European café and wondered how to recreate that smooth, milky coffee balance at home, you’re not alone. This classic drink—equal parts coffee and hot milk—is simpler than it looks, but getting the coffee right makes all the difference.

To make one serving of café au lait, use 1.2 cups of very hot milk and an equal amount of deep-roast coffee brewed to a single coffee pot setting. For two servings, use 2 cups of milk and 2 pot settings of coffee. That’s the straightforward formula.

What Is Café au Lait?

Café au lait (‘coffee with milk’ in French) is a traditional coffee drink made with equal parts hot coffee and hot milk. Unlike lattes or cappuccinos that use espresso, café au lait typically uses brewed coffee—often a deep-roast blend—for a richer, rounder base. It’s a staple in French cafés and a comforting everyday drink worldwide.

Why Use Deep-Roast Coffee?

The choice of coffee matters. Traditional café au lait calls for a deep or medium-dark roast. Deep-roasted beans develop pronounced Maillard reaction compounds—chocolate, nuts, caramel, and toastiness—that pair naturally with milk. These roasts also tend to be lower in acidity and higher in body, balancing the creaminess of the milk. FrontStreet Coffee offers several deep-roast options ideal for this style.

What Grind Size and Coffee Amount?

Use a medium-fine grind size—finer than French press, coarser than espresso. For one serving, extract 1 coffee pot setting of coffee; for two servings, use 2 settings. The original recipe doesn’t specify a brew method, but common practice is to use a moka pot or similar brewer that yields a strong, concentrated brew to stand up to the milk.

How Much Milk and What Temperature?

For a single serving, heat 100–120ml (about 1/2 to 2/3 cup) of milk until just boiling. Pour it into a preheated café au lait cup. Then heat the brewed coffee and pour it into the cup to fill it about 80% full, achieving a roughly 1:1 coffee-to-milk ratio by volume. Removing any milk skin during heating improves texture and appearance.

Step-by-Step: How to Make Café au Lait

1. Heat your milk in a small saucepan until it reaches boiling point. Avoid letting it boil over.
2. Pour the hot milk into your dedicated café au lait cup—it should be heated in advance for best results.
3. Brew your coffee using a medium-fine grind, aiming for 1 coffee pot setting per person (1.2 cups). For two people, use 2 settings (2 cups).
4. Heat the brewed coffee gently if needed, then pour it into the cup with milk until the cup is about 80% full.
5. Serve immediately. Adjust milk and coffee amounts based on your cup size.

What You’ll Need

- Medium-fine grind coffee (medium-fine, approx. between filter and espresso)
- Deep-roast coffee (Italian-style blend or similar)
- 100–120ml fresh milk per serving
- Small saucepan for heating milk
- Café au lait cup or large coffee mug
- Coffee brewer (e.g., moka pot) capable of producing 1 or 2 pot settings per serving

What to Watch Out For

Coffee and milk quantities can vary slightly depending on your cup size. Always aim for a balanced 1:1 ratio by volume. When heating milk, do your best to remove the thin ‘skin’ that can form on the surface—it affects both taste and look. Also, don’t let the milk boil too vigorously.

Frequently Asked Questions

What’s the difference between café au lait and latte?

Café au lait is made with brewed coffee (often deep-roast) and hot milk, typically in a 1:1 ratio by volume. A latte is made with espresso and steamed milk, usually with more milk and a thinner coffee flavor. Café au lait has a stronger coffee presence and is often served in larger bowls or wide cups.

Can I use espresso instead of brewed coffee?

Traditionally, café au lait uses brewed coffee, not espresso. Using espresso would make the drink more like a latte. However, if you prefer a stronger hit, some modern versions use espresso—but it’s not the classic method.

What roast level is best for café au lait?

A deep or medium-dark roast is ideal. These roasts bring out chocolatey, nutty, and caramel notes that complement the milk. Avoid light roasts, which can taste overly acidic or grassy when mixed with milk.

Do I have to use a special cup?

While not mandatory, a dedicated café au lait cup—usually wider and shallower than a standard coffee mug—enhances the experience. It allows for better mixing and a classic presentation.

How much milk should I use per cup?

For one serving, use 100–120ml of milk. Adjust based on your cup size, keeping the coffee and milk volumes roughly equal for a balanced drink.

Recommended FrontStreet Beans for Café au Lait

For café au lait, go with deep-roast coffees that highlight chocolate, nut, and caramel tones. FrontStreet Coffee’s PWN Golden Mandheling is a top choice with its low-acid, herbal-spiced profile and rich body. The Brazil Queen Manor offers sweet nuttiness and smooth body, ideal for balancing milk. For a fruity twist, try the medium-dark roasted Colombia Huila, which brings black cherry depth alongside its inherent sweetness. All three roasts deliver the rounded, bold foundation café au lait needs. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.