Step 1: In a large mixing bowl, cream together the butter, granulated sugar, and brown sugar using an electric mixer on medium speed for about 3 minutes until light and fluffy.

Step 2: Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.

Step 3: In another bowl, whisk together the flour, baking soda, baking powder, and salt.

Step 4: Gradually add the dry ingredients to the wet ingredients and mix on low speed until just combined.

Step 5: Gently fold in the lemon zest, chopped strawberries, and lemonade concentrate.

Step 6: Cover the dough with plastic wrap and refrigerate for at least 30 minutes.

Step 7: Preheat the oven to 350°F (175°C) and line baking sheets with parchment paper. Scoop rounded tablespoons of dough onto the sheets.

Step 8: Bake for 10-12 minutes until the edges are lightly golden, then let cool on the sheets for 5 minutes before transferring to a wire rack.