app/views/alchemy/admin/ingredients/edit.html.erb
<%= alchemy_form_for @ingredient, as: :ingredient, url: alchemy.admin_ingredient_path(@ingredient) do |f| %>
<%= render "alchemy/admin/ingredients/#{@ingredient.partial_name}_fields", ingredient: @ingredient, f: f %>
<%= f.submit Alchemy.t(:save) %>
<% end %>