In a large mixing bowl, combine 1 ½ cups flour, 1 teaspoon baking powder, ¼ teaspoon baking soda, and ¾ teaspoon salt.

In another bowl, cream together ½ cup unsalted butter and ¾ cup sugar until light and fluffy, about 2-3 minutes.

Mix in 1 teaspoon vanilla extract until fully incorporated.

Gradually add the flour mixture to the creamed butter, stirring gently to combine.

Fold in 4 oz chopped white chocolate and ¾ cup fresh blueberries.

Cover the dough with plastic wrap and refrigerate for 1-2 hours.

In a small bowl, blend 2.5 oz cream cheese with 1 tablespoon blueberry jam until smooth.

Preheat your oven to 350°F (175°C). Shape the chilled dough into small balls in your hands and place a teaspoon of filling in the center before sealing.

Line a baking sheet with parchment paper and bake for 12-15 minutes until lightly golden.

Let cool for 5 minutes on the baking sheet before transferring to a wire rack.