Preheat oven to 350℉. Line an 8x8-inch baking dish with parchment and set aside.
Place all of the dry ingredients into a bowl. Mix and set aside.
Use a standing mixer to cream the butter and brown sugar until light and fluffy, about 5 minutes.
Next, add the egg, orange juice, orange zest, and vanilla to the bowl and mix.
Slowly add the dry ingredients to the wet ingredients and mix to combine.
Transfer the dough to the baking dish and bake for 25 minutes.
Remove from the oven and allow to cool completely before frosting.
Once the bars are completely cooled, prepare the frosting. Add the cream cheese, greek yogurt, powdered sugar, and vanilla extract to a bowl and mix. Spread the frosting on top of the bars.
Top with dried cranberries and drizzle the melted white chocolate on top. Refrigerate for 5 minutes to allow the melted chocolate time to firm up.