Line a baking sheet with parchment paper and preheat your oven to 350F.
In a large mixing bowl beat together 5 Tbsp softened butter and sugar until fluffy.
Mix in your egg and 1 Tbsp vanilla.
Mix in your flour, salt, and baking powder until you have a thick dough.
Form your dough into a large dough ball and roll it out with a rolling pin.
Use your star cookie-cutter to cut out about 10 stars.
Place the stars on your parchment paper and bake for exactly 10 minutes, then let cool.
While cooling, mix together your 6 Tbsp softened butter, softened cream cheese, 1 tsp vanilla and powdered sugar 1 cup at a time until you have a creamy frosting.
Scoop your frosting into a large decorating bag, cut a small piece off the tip, and begin frosting your cookies.
Wash and slice your strawberries.
Place five strawberry slices on each cookie in a pinwheel shape and enjoy!