Classic cocktails are making a comeback in a big way, but you might be surprised by one very unexpected ingredient. Enter the egg white — the key to that frothy, silky foam atop your favorite libations. Effervescent and glamorous, the addition of egg white takes a simple cocktail to the next level. We’ve selected a few exciting ways you can try this trend at your next soiree. Pro tip: Be sure to pick fresh, pasteurized eggs with no signs of cracks or damage.

1. Red Wine Gin Sour: Next time you feel stuck in a gin rut, transport yourself to Rome with the unexpected addition of Italian red wine. Add the vino last to create this (majorly trending) ombre effect. (via Hummingbird High)

2. Blood Orange MartiniThe blood orange season is short-lived, so make the best of it with something special. A little rosemary syrup is sophisticated and delicious. (via Little Sugar Snaps)

3. Lemon Chamomile Spring Cocktail: The addition of lemon curd makes for an ultra velvety libation. (via Honestly Yum)

4. Passionfruit Martini: Tangy and light, we suggest serving this one at your next BBQ. (via Supergolden Bakes)

5. Raspberry Rose Fizz Cocktail: You can’t go wrong with this pretty in pink situation, especially when served at baby showers, brunches, and romantic dinners for two. (via Lark & Linen)

6. Meyer Lemon and Sage Sour: If clean and fresh is more your speed, check out this minimalist’s dream. It’s herbaceous and elegant, and the slightly floral notes from the Meyer lemons soften everything up. (via Craft + Cocktails)

7. The Spiced Pear Flip: When colder days come calling, pear and rosemary join forces with gin to heat things up. (via Coco Kelley)

8. Pink Grapefruit and Campari Fizz: What is it about Campari that always makes us feel like we’re sunning ourselves on a beach in the south of France? A little citrus and sparkling wine round out this ultra glam cocktail. (via Tell Me Tuesday)

9. Lemon Lavender Gin Fizz: If you thought lavender was just for soaps and sachets, you’ve been missing out. Fragrant and fresh, it imparts an unexpected flavor and a gorgeous bluish hue. (via The Charming Detroiter)

10. Maple Whiskey Sour: A classic whiskey sour requires only a few ingredients, comes together super fast, and is easy to remember. (via Gimme Some Oven)

11. Bohemian Cocktail With Elderflower Foam: Gin and juice never tasted so good. A frothy elderflower head takes grapefruit juice right over the edge. (via Kitchen Swagger)

Need a nibble to go along with that perfect cocktail? Follow us on Pinterest!