In another large mixing bowl, combine the egg yolks, olive oil, maple syrup, vanilla, lemon juice, and lemon zest. Whisk to combine well. Add the blueberries and stir in.
Use a 1-tablespoon cookie scoop to scoop balls onto a parchment lined cookie sheet, leaving about 1 inch of space between cookie dough balls. Bake the cookies for 12-14 minutes,