<form action="/new" method="post">

  <input name="title" type="text">
  <input name="description" type="text">
  <input name="steps[0][text]" type="text">
  <input name="steps[0][ingredients]" type="text">
  <input name="steps[1][text]" type="text">
  <input name="steps[1][ingredients]" type="text">
  <button type="submit">Submit Form</button>

</form>