Name: Smoothie King Watermelon Xtreme
Prep time: 10 min
Total time: 10 min
Yield: About 3 servings
Ingredients: Two cups of fresh watermelon juice: To prepare, blend fresh watermelon cubes in a blender and strain to remove the pulp, achieving a smooth juice. If in a rush, buying pre-made watermelon juice is also an option; just be mindful of added sugars.; 1 cup of frozen strawberries: Strawberries add a tangy, sweet depth, and freezing them beforehand enhances the smoothie’s creamy texture.; 1/2 cup of coconut water: This adds a light tropical flavor.; 1/2 cup of whey protein powder: To recreate the protein component commonly found in Smoothie King drinks, you can use a high-quality, plain or vanilla-flavored whey protein powder. If you prefer a non-dairy option, pea protein or any other plant-based protein powder are good substitutes.

Smoothie King Watermelon Xtreme

By Sandra · 30 Aug 2024 · Updated 30 Sep 2026

You might have found yourself craving this smoothie on days when a visit to Smoothie King just isn't on the cards, or perhaps you're curious whether you can replicate or even tweak this tasty beverage at home. Great news: recreating the Smoothie King Watermelon Xtreme at home is not only possible, but it's also a fun and rewarding DIY project!

About 3 servings·10 min

How to make it

Prepare the Watermelon Juice: If starting from scratch, chop your watermelon into cubes, discarding any seeds. Blend until smooth, then strain using a fine mesh sieve to extract the juice. Measure out 2 cups of juice for the smoothie.
Combine Ingredients: In a blender, add the 2 cups of watermelon juice, frozen strawberries, coconut water, and whey protein powder (or protein powder of your choice).
Blend Until Smooth: Cover and blend quickly until all the ingredients are thoroughly mixed and the texture is smooth. If the consistency is too thick, you can add a bit more coconut water to thin it out.
Taste and Adjust: If the smoothie isn't sweet enough, you can add a bit of honey or agave syrup. Likewise, if it's too sweet, a splash of more coconut water or a squeeze of lime can help balance it out.
Serve Immediately: Pour the smoothie into your preferred glass and, if desired, garnish with a strawberry slice or a small wedge of watermelon.

Recipe notes

Flavor: Coconut water adds a tropical note. This is not a measured electrolyte replacement drink.

Smoothie King Watermelon Xtreme Drink with a watermelon slice on a beach

Smoothie King Watermelon Xtreme Drink Recipe

Smoothie King Watermelon Xtreme is a smoothie blend typically featuring watermelon as the primary flavor. Smoothie King sells its Watermelon X-Treme® as a limited-time summer smoothie, so it is not always on the menu. It's designed to be a refreshing and hydrating option, often including other fruits and ingredients to enhance the taste and nutritional profile.

Tips:

Opt for Quality Ingredients: Since this smoothie has a relatively simple ingredient list, the quality of each component really shines through. Opt for ripe, flavorful strawberries and fresh watermelon for the best taste.
Strawberry Swap: If strawberries are out of season or not to your preference, raspberries can make a good substitute, offering a similar color and tartness.
Flavor and texture: Coconut water adds a light tropical flavor. This smoothie is not a measured electrolyte replacement drink; water and regular meals generally meet everyday hydration needs.
Whey Protein Alternatives: For those with dairy sensitivities or preferences, switching the whey protein for a plant-based protein can make this smoothie vegan-friendly. This might slightly alter the taste.

What to serve with

This fruity smoothie suits light, fresh food: avocado toast or a veggie omelet at breakfast, or a grilled chicken salad after a workout. For a snack, add a nut bar or a yogurt parfait.

Ingredients Substitutes

Watermelon Xtreme Drink

The Smoothie King Watermelon Xtreme is a refreshing summertime favorite that features the sweet and hydrating qualities of watermelon. If you're looking to make a similar smoothie at home and need to substitute ingredients due to availability or personal preferences, here are some detailed alternative options:

Watermelon Juice Blend:

Homemade Watermelon Juice: Puree fresh watermelon chunks in a blender and strain to make homemade juice.
Other Melon Juices: Cantaloupe or honeydew juice can provide a similar sweetness and hydrating effect.
Coconut Water: Using coconut water as a base liquid for a tropical twist.

Watermelon:

Frozen Watermelon: If fresh watermelon is unavailable, frozen watermelon will do. It also chills the smoothie without dilution from ice.
Mixed Berries: A combination of strawberries, raspberries, and blueberries can offer a different but tantalizing flavor profile.

Optional sweetener (honey or agave in step 4):

Honey or Agave Syrup: Both are natural sweeteners that can give the smoothie a more complex sweetness.
Maple Syrup: Adds sweetness with a hint of maple flavor, which can create an interesting taste combination.
Stevia or Monk Fruit Sweetener: Use a natural sugar substitute like stevia or monk fruit sweetener for a lower-calorie alternative.

Liquid substitutes:

Use plain water or a little more coconut water to adjust the texture. These swaps change flavor and do not turn the smoothie into a formulated sports drink.

Final Thoughts

Making this Smoothie King Watermelon Xtreme drink at home offers the perfect way to enjoy a refreshing, nourishing treat any time you crave it. You can make this delightful smoothie a staple in your summer beverage rotation by customizing the ingredients to suit your dietary needs and taste preferences.

More Smoothie King Recipes:

Smoothie King Watermelon Lemonade Homemade Recipe

Smoothie King Watermelon Xtreme

Ingredients