Gingerbread Whoopie Pies

Preheat oven to 350 degrees F (175 degrees C). Line a baking sheet with parchment paper or a silicone baking mat.

Combine flour, white sugar, molasses, ginger, baking soda, cinnamon, and salt together in a large bowl. Mix in vegetable oil and egg until combined. Pour in boiling water and whisk until smooth.

Drop dough in balls onto prepared baking sheet, about 1 inch apart, using a 1-ounce cookie scoop.

Bake in the preheated oven until puffed and golden, about 12 minutes. Allow to cool on the pan for about 5 minutes before transferring onto a rack to cool completely.

Beat confectioners' sugar, cream cheese, butter, cream, and vanilla extract in the bowl of a stand mixer on low until combined. Increase speed to high and beat until light and fluffy.

Spread about 2 teaspoons of filling onto the bottom of a cookie; top with another similarly sized cookie. Repeat with remaining cookies. Chill for 30 minutes.