Watermelon Mint Lemonade made with fresh watermelon chunks, fresh lemon juice and sweetened with a mint simple syrup.

This watermelon mint lemonade is super easy to make and is so refreshing on a hot summer day. This is one of those recipes you’ll want to tinker around with to find the right flavor combination for your tastes. For example, the amount of water you need to add will vary depending on how juicy the watermelon is and how strong you want the flavor to be. 

Directions for a mint-infused simple syrup are included. The watermelon adds a lot of sweetness, however, so you may not wish to sweeten it further. It really depends on how sweet or tart you want the final results to be and how sweet your watermelon is.

If you are serving this recipe outside on a warm day, make extra so you can freeze some into ice cubes or an ice ring (if serving in a punch bowl). Using ice cubes made of the beverage you are serving rather than plain water will prevent watered-down drinks as the day or evening progresses.

For an alcoholic variation, add some citrus-flavored vodka before serving. 

Watermelon Mint Lemonade Recipe

Ingredients:

• Fresh watermelon
• Fresh lemon juice
• Water
• Fresh mint leaves
• Fresh mint sprigs, for garnish
• Lemon slices, for garnish

Optional Mint Simple Syrup Ingredients:

• Sugar
• Water
• Fresh mint leaves

Make the Mint Simple Syrup

Simple syrup is basically sugar water that you use to sweeten cold drinks. Sugar doesn’t dissolve well in cold water. It’s nice to keep a batch of syrup on hand during the summer to sweeten iced tea, coffee or summer cocktails. It’s pretty easy to flavor simple syrup with herbs and fruit like you do here.

To make the simple syrup, add the sugar, water, and crushed mint leaves to a small saucepan and heat over medium-high heat. Stir until the sugar dissolves completely. Reduce heat to low and simmer for 10 minutes. Remove from heat and discard mint leaves. Cool completely before using. 

Make the Watermelon Mint Lemonade

Start by making a watermelon lemonade. To make the lemonade, add the watermelon chunks, lemon juice, and ½ cup cold water to a blender and blend until liquefied. Pour through a fine-mesh strainer to remove any larger particles. Taste and add more water, if needed. Sweeten with mint-infused simple syrup, if desired.

Next, add the mint to the lemonade. Bruise ½ cup of fresh mint leaves with your fingers to release oils. Add the crushed leaves to the bottom of a large glass pitcher or jar. If serving immediately, add ice cubes to the container and pour the watermelon mixture over top. Add fresh lemon slices to the container for garnish. 

To serve, pour over ice and add a sprig of fresh mint and a lemon slice for garnish.