Save A bold and unconventional latte that blends the subtle sweetness of caramelized onions with rich espresso and creamy milk. This avant-garde beverage offers a savory twist on the classic coffee drink, perfect for adventurous palates seeking new flavor frontiers.
I was skeptical the first time I tried an onion latte, but the subtle sweetness from caramelized onions paired surprisingly well with the espresso and milk. It made for a memorable morning experiment and has since become a go-to choice when I am craving something different.
Ingredients
- Yellow onion: 1 small, thinly sliced
- Unsalted butter: 1 tablespoon
- Granulated sugar: 1/2 teaspoon
- Salt: Pinch
- Freshly brewed espresso: 2 shots (60 ml)
- Whole milk: 300 ml (or oat milk for dairy-free option)
- Honey or maple syrup: 1 teaspoon (optional, for sweetness)
Instructions
- Prepare the onion base:
- In a small skillet over medium-low heat, melt the butter. Add the sliced onion, sugar, and a pinch of salt. Cook slowly, stirring occasionally, until the onions are deeply caramelized and golden, about 12–15 minutes. Low and slow yields the best flavor.
- Blend the caramelized onions:
- Transfer the caramelized onions and any pan juices to a blender. Add 2 tablespoons of milk and blend until completely smooth. Strain through a fine-mesh sieve to ensure a silky texture.
- Make the latte:
- Brew 2 shots of espresso and divide evenly between two cups. Add 1 tablespoon of the strained onion purée to each cup, stirring well to combine.
- Froth the milk:
- Heat the remaining milk until steaming, then froth using a milk frother or whisk until creamy and foamy.
- Assemble:
- Pour the frothed milk over the espresso-onion mixture in each cup. Sweeten with honey or maple syrup if desired. Gently stir and serve immediately.
Save When I served onion latte for brunch, my family was intrigued and surprised by how the sweet, savory notes complemented our breakfast spread.
Required Tools
Skillet, blender, fine-mesh sieve, espresso machine or strong coffee maker, milk frother or whisk.
Allergen Information
Contains dairy (milk, butter). For dairy-free/vegan, use plant-based alternatives. No gluten, eggs, or nuts. Always check product labels for hidden allergens.
Nutritional Information (per serving)
Calories: 110 Protein: 4 g Total Fat: 4 g Carbohydrates: 15 g
Save Serve your onion latte immediately for the best creamy texture and savory aroma. Start with a small batch to test your flavor preferences.
Recipe Guide
- → Can I use a different type of onion?
Yes, experiment with sweet Vidalia or red onions for distinct flavor profiles. Each variety adds unique notes, so feel free to try different types for a personalized touch.
- → How do I achieve perfectly caramelized onions?
Cook onions low and slow over medium-low heat, stirring occasionally. Avoid rushing, as patience brings out deep sweetness and golden color in the onions.
- → Is there a vegan alternative for dairy ingredients?
Absolutely. Substitute with plant-based butter and non-dairy milk. Oat milk works well for frothing, maintaining creamy texture and flavor balance.
- → What equipment do I need to prepare this beverage?
You’ll need a skillet for caramelizing, a blender for pureeing, a sieve for straining, an espresso maker or strong coffee, and a milk frother or whisk.
- → What pairs well with this drink?
A sharp cheese croissant enhances the savory profile of this latte. Other lightly cheesy, crisp pastries make excellent companions to the beverage.
- → How should I serve the beverage for best flavor?
Serve immediately after assembling, while it's hot and fresh. Consider a light sprinkle of black pepper or chives for additional savory nuance.