Start by mixing cream cheese with powdered sugar until smooth. Spoon the mixture onto parchment-lined plates and freeze for at least one hour until firm. This ensures a gooey center that won’t melt into the dough.
In a large bowl, cream butter and both sugars until fluffy. Add the egg and vanilla, then gradually mix in the dry ingredients. Chop the fresh strawberries and fold them gently into the dough, keeping the batter light and airy.
Scoop dough into large balls and press a dent in the center. Place a frozen cream cheese ball on top, then cover with another dough ball, pinching edges to seal. Chill assembled cookies briefly to firm up before baking.
Preheat the oven while the cookies chill. Bake one tray at a time for 13–17 minutes until edges are slightly golden. Let them rest on the tray for 10 minutes before transferring to a cooling rack.