Vibrant Key Lime Protein Smoothie

As seen in Sip, Savor, and Celebrate.

This cool and smooth drink brings together vanilla protein powder, a squeeze of fresh lime, a little zest, and almond milk for a pop of citrusy flavor. Everything gets tossed in a blender with ice until it's silky, then a sprinkle of crushed graham cracker goes right on top. You'll get that famous key lime pie flavor in every sip, with a decent amount of protein to fill you up. Great in the morning or for a quick pick-me-up, and those crunchy graham bits? They’re just the right touch. Expect bold lime flavor and a sweet finish every time you pour a glass.

Barbara Chef
Created By Sasha
Last updated on Mon, 09 Jun 2025 15:41:38 GMT
Glass filled with creamy white smoothie, finished with a lime wedge. Save Pin
Glass filled with creamy white smoothie, finished with a lime wedge. | foodthingle.com

Grab your blender, toss in some citrus and a few wholesome things, and you'll be sipping on a creamy, cool smoothie that seriously feels like you're treating yourself at breakfast. It's packed with tangy lime flavor and comes together super fast. Whether you're craving something sweet and zesty or need post-workout fuel, this one's a winner for any busy morning.

I remember that crazy hot summer when my kids begged for these all the time—they quickly became our favorite treat after outdoor adventures. Even now, they remind me of sunny trips far away, even when I'm just hanging out in my own kitchen.

Dreamy Ingredients

  • Crushed wholegrain graham cracker for topping: that pie-like crunch really brings a nice finish. Grab wholegrain for an even richer bite
  • Ice: toss in for instant chill and body—start with a cup but pile on more if you love it ultra-thick
  • Pinch of salt: makes every flavor pop—flaky sea salt is awesome if you have some
  • Lime zest: delivers a blast of fresh limey goodness. Go bright and unwaxed
  • Freshly squeezed lime juice: that bold citrus kick can't be beat. Always juice 'em right before blending
  • Unsweetened almond milk: the dairy-free way to get that smooth texture. Look for unsweetened so it's purely tasty
  • Vanilla protein powder: makes it creamy and satisfying. Best bet is one without weird fake flavors

Super Simple Directions

Top and Serve:
Once it's creamy, pour it in a glass and hit the top with a shower of graham cracker. Taste is best right away
Add Everything:
Start by piling almond milk, protein powder, citrus juice, zest, salt, and ice into the blender. Liquid goes on the bottom, trust me—it just works better that way
Test and Tweak:
Have a taste. Not zingy enough? More lime zest. Too thick? More almond milk does the trick
Blend Until Thick:
Crank up the blender until the drink is extra frosty and smooth. Stop if it needs a scrape from the sides
Cold coconut milk with a bright green straw in a tall glass. Save Pin
Cold coconut milk with a bright green straw in a tall glass. | foodthingle.com

Good Things to Know

  • If you use gluten free protein and skip the graham, it's safe for gluten free needs
  • Great way to get protein and a hit of vitamin C first thing
  • Very little sugar if your protein powder's not sweetened, so you won't get a sugar rush

A sprinkle of extra lime zest on top is my go-to move. It turns every sip into something totally bright and cheery, perfect for when I want to lift my spirits.

Keeping It Fresh

Best plan is to drink right after blending because the melted ice can water it down. If you need to plan ahead, freeze the blended mix, then let it thaw a bit and stir before sipping—just know the texture might get a little different

Swap Options

Try it with coconut milk or dairy milk if that's what you’ve got. Greek yogurt will give you a thicker, more tangy sip and bumps up the protein. Out of fresh limes? Go with bottled lime juice in a pinch, but it won’t pop as much. No graham crackers? Toss some toasted oats or nuts on top for crunch

How to Serve

Pour it into a frosty glass, dress it up with a little more lime zest or a lime slice for a fun look. Dollop on some coconut whipped cream if you’re feeling fancy and want to keep things dairy-free. Sticking in a reusable straw always makes it feel special

Yogurt smoothie in a glass with a green straw and cool vibes. Save Pin
Yogurt smoothie in a glass with a green straw and cool vibes. | foodthingle.com

Fun Backstory

The real-deal key lime pie comes from Florida’s island chain, the Keys, where those tiny limes grow like crazy. This drink switches up those classic flavors into a better-for-you blend you can have anytime—even when actual citrus isn’t easy to find. It’s like relaxing somewhere tropical with every sip

Common Recipe Questions

→ Can I use regular milk instead of almond milk?

Sure thing. Swap in regular milk or whatever milk you like—it’ll be creamy just the same.

→ Is there a way to make it without protein powder?

Skip the protein powder and toss in Greek yogurt instead. That way, you still get a creamy blend and a protein kick.

→ How do I achieve the best lime flavor?

For punchy lime, go for fresh lime juice and some grated zest. That combo brings out the brightest citrus flavor.

→ Can I prepare it ahead of time?

This one’s best right after blending, but you can keep everything ready and zip it all together when you’re set to drink.

→ What toppings go well with this smoothie?

Try crushed graham crackers, whipped cream, or extra lime zest on top for a fun finish.

→ Is it possible to make a vegan version?

Go for plant protein powder and double-check your graham crackers to make sure they're animal-free. That’ll do the trick.

Key Lime Protein Shake

Light and zingy shake with lime, smooth vanilla, and a sweet graham crumb layer. Perfect when you want something tasty but better for you.

Preparation Time
5 Minutes
Cooking Time
~
Overall Time
5 Minutes
Created By: Sasha

Recipe Type: Beverages

Skill Level: Simple

Regional Style: American

Output: 1 Number of Servings (1 smoothie)

Special Diets: Meat-Free

What You'll Need

→ Smoothie Base

01 Toss in one to two handfuls of ice cubes
02 Just a small pinch of salt
03 Scrape the zest off a lime (should be close to 2 teaspoons)
04 Squeeze out 3/4 cup of lime juice, fresh is best
05 Pour in 3/4 cup of almond milk (unsweetened, any plain or vanilla brand you like)
06 Scoop in some vanilla protein powder, around 30 grams or whatever one scoop holds (something like Quest Vanilla Milkshake style works, clocks in at about 100 calories)

→ Topping

07 Break up half a wholegrain graham cracker until it’s crumb-like

Steps to Follow

Step 01

Dump your smoothie into a cup, sprinkle the crushed graham cracker on top, and drink it right away.

Step 02

Crank your blender up high and blend until you’ve got a creamy, smooth drink.

Step 03

Drop protein powder, almond milk, lime juice, zest, salt, and ice all into the blender jar.

Additional Tips

  1. You can whip up your own wholewheat graham cracker topping at home—just use regular kitchen basics.

Essential Tools

  • Blender
  • Measuring cups
  • Zester for the citrus

Allergen Information

Always verify ingredient labels for allergens and consult with a healthcare expert if unsure.
  • Has tree nuts since almond milk is used
  • Milk-based stuff as the protein powder might have dairy
  • Wheat is present thanks to the graham cracker on top

Nutrition Info (Per Serving)

These details are best used as an estimate and shouldn't replace professional health advice.
  • Calories: 168.6
  • Fat Content: 2 g
  • Carbohydrates: 19.3 g
  • Protein: 23.5 g