Heat oven to 350°F. Line a baking sheet with parchment paper or silicone baking mat.
In a medium sized mixing bowl, whisk together flour, baking powder, and salt.
In a large bowl, using an electric mixer, beat cream cheese, butters, and sugars until light in color. Add egg and vanilla extract, and continue beating until creamy.
Add flour mixture to the wet ingredients, and beat until just combined.
Using a spatula, fold in sliced strawberries.
Drop cookie dough in 1.5 tablespoon portions on the baking sheet, leaving about 2 inches between cookies. Bake for 10-12 minutes until cookies are golden brown around the edges.