Given the task definition, example input & output, solve the new input case.
In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.
Example: Preheat oven to 375 degrees., Boil syrup, sugar and shortening over medium heat, stirring constantly., Remove from heat., Gradually stir in flour and nuts., Drop by teaspoonfuls about 3 inches apart on lightly greased cookie sheet., Bake 5 to 6 min., Remove from oven and let stand 5 min, before removing from sheet., May be rolled into cylindrical shape while still hot., If cooled too much, return to oven for a minute., Yield: 4 dozen cookies.
Output: flour, nuts, corn syrup, shortening, brown sugar
This is a good example, as we see the NER is generated correctly from the directions.

New input case for you: Combine flour, 1 cup melted butter, white sugar, milk, egg, and yeast in a large bowl. Knead until dough is smooth and elastic. Cover loosely with plastic wrap and let rise, about 45 minutes., Heat treacle, brown sugar, 1/4 cup butter, and cinnamon in a small saucepan over medium heat until melted together, 3 to 5 minutes. Mix well until filling is smooth., Preheat a shallow waffle iron according to manufacturer's instructions., Knead dough briefly and divide it into balls about 1 1/2 inches in diameter, or as needed to fit your waffle iron., Bake 1 ball of dough the preheated iron until golden brown and iron stops steaming, 30 seconds to 1 minute. Remove with a cake spatula. Press down with a round cutter to trim edges for a perfect circle. Carefully slice horizontally into 2 rounds while still hot. Spread 1 to 2 tablespoons of the filling on each round and sandwich together. Repeat with remaining dough.
Output:
all-purpose, butter, white sugar, milk, egg, active dry yeast, Filling, molasses, brown sugar, butter, ground cinnamon