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.
The first time I tried an onion latte, I was skeptical. After one sip, the rich, caramelized onion flavor blended with creamy milk and espresso completely won me over. It's now a favorite when I want a truly original drink for brunch.
Ingredients
- Yellow onion: 1 small, thinly sliced
- Unsalted butter: 1 tablespoon
- Granulated sugar: 1/2 teaspoon
- Salt: Pinch
- Espresso: 2 shots (60 ml), freshly brewed
- Whole milk: 300 ml (or oat milk for dairy-free)
- Honey or maple syrup: 1 teaspoon, optional
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. Do not rush this step—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.
Pin it My family was surprised when I brought out these lattes for our weekend brunch. Even my skeptical uncle asked for seconds once he tasted that mellow, savory sweetness layered with coffee.
Required Tools
You'll need a skillet, blender, fine-mesh sieve, espresso machine or strong coffee maker, and a milk frother or whisk.
Allergen Information
Contains dairy (milk, butter). For dairy-free and vegan options, use plant-based alternatives. This recipe does not contain gluten, eggs, or nuts, but always check product packaging for hidden allergens.
Nutritional Information (per serving)
Calories: 110 Protein: 4 g Carbohydrates: 15 g Total Fat: 4 g
Pin it Serve your onion latte immediately for best flavor and texture. It makes a memorable conversation starter for any adventurous gathering.
Frequently Asked Questions
- → How do caramelized onions affect the coffee flavor?
Caramelized onions add subtle sweetness and depth, creating a savory foundation that complements the bitterness of espresso.
- → Can I make this latte dairy-free?
Absolutely! Substitute plant-based butter and non-dairy milk, such as oat milk, for a vegan-friendly version.
- → What is the best kind of onion to use?
Yellow onions work well, but sweet varieties like Vidalia or red onions can add unique nuances to the latte.
- → Should I strain the onion purée?
Straining ensures a smooth, silky texture, removing fibrous bits that could affect the latte's mouthfeel.
- → How can I garnish this beverage?
Try a sprinkle of ground pepper or chive for added complexity and visual appeal. It pairs well with savory pastries.
- → Does this drink contain common allergens?
Yes, it contains milk and butter; use plant-based versions for an allergen-friendly option.