Begin by thawing 1½ cups of frozen triple berry blend or using 2 cups of fresh mixed berries. Once thawed, place the berries in a fine mesh strainer over a bowl to capture the delicious juices as they drain.

In a medium-sized pot, combine 2 cups of water and granulated sugar. Heat over medium-high, stirring occasionally until the mixture reaches a gentle boil. Allow it to boil for about 2 minutes until the sugar dissolves completely.

Once the simple syrup has cooled, stir in 1 cup of freshly squeezed lemon juice and 1 tablespoon of finely grated lemon zest.

In a blender, pour in 1 cup of the cooled lemon mixture along with the strained berries. Blend until completely smooth.

Using a fine mesh sieve, strain the blended berry puree over a clean bowl, gently pressing with a silicone spatula to extract all the juice.

Pour the strained berry juice back into the bowl with the remaining lemon mixture, then add the last 2 cups of water. Stir until well mixed.

Transfer the lemonade into a large pitcher and refrigerate for at least 4 hours.

Once chilled, pour the Triple Berry Lemonade over ice in tall glasses and garnish with fresh mint leaves, lemon slices, and additional berries.