3⁄4 cup unsalted butter , plus more for bowl and pan 12 cups Fruit Loops cereal ( from one 12 - ounce box ) 2 ( 10 1/2 ounce ) bags mini marshmallows 1 teaspoon kosher salt 1 teaspoon pure vanilla extract or 1 teaspoon vanilla bean paste cold milk ( for serving )
O B-QUANTITY O O B-UNIT B-TASTE O O B-FOOD O O O B-PURPOSE I-PURPOSE I-PURPOSE I-PURPOSE B-QUANTITY B-UNIT O O B-FOOD O O O O O O O O B-QUANTITY O B-QUANTITY I-QUANTITY O O B-UNIT O B-UNIT B-PHYSICAL_QUALITY B-FOOD O O O B-QUANTITY B-UNIT O O B-FOOD O I-FOOD B-QUANTITY B-UNIT O O B-PHYSICAL_QUALITY B-FOOD I-FOOD O B-QUANTITY B-UNIT O O B-FOOD I-FOOD I-FOOD B-PHYSICAL_QUALITY B-FOOD O B-PURPOSE I-PURPOSE O O