Brownie Cookie Whoopie Pies

Ingredients (11)

• + cooking spray add to pantry
• + 1 (18.4 ounce) package brownie mix add to pantry
• + ¼ cup all-purpose flour add to pantry
• + 1 cup chocolate chips add to pantry
• ✓ ¼ cup vegetable oil
• + 2 large eggs add to pantry
• ✓ 1 tablespoon multicolored candy sprinkles, or to taste
• + 1 ½ cups powdered sugar add to pantry
• + ½ cup unsalted butter, softened add to pantry
• + ½ teaspoon vanilla extract add to pantry
• + ½ (16 ounce) tub marshmallow creme add to pantry