Gingersnap Sandwich Cookies with White Chocolate Filling

INGREDIENTS

2 1/4 cups

all-purpose flour

1 tsp

baking powder

1/4 tsp

salt

1 tsp

ground ginger

1 tsp

ground cinnamon

1/2 tsp

ground cloves

1/8 tsp

ground nutmeg

3/4 cup

unsalted butter, at room temperature

1 cup

packed light brown sugar

large egg

1 tsp

vanilla extract

1/4 cup

molasses

1/2 cup

granulated sugar-to roll the cookies in before baking

2 cups

white chocolate chips

1 cup

unsalted butter, at room temperature

3 cups

powdered sugar

1 tsp

vanilla extract

2 tbsp

milk, or as needed