fp-cake-recipe.py

# https://probablydance.com/2016/02/27/functional-programming-is-not-popular-because-it-is-weird/

# Banana Cake recipe 
# source: http://allrecipes.com/Recipe/A-Number-1-Banana-Cake/
#
# 1. Preheat oven to 175 degrees C. Grease and flour 2 – 8 inch round pans.
#    In a small bowl, whisk together flour, baking soda and salt; set aside.
#
# 2. In a large bowl, cream butter, white sugar and brown sugar until light and fluffy.
#    Beat in eggs, one at a time. Mix in the bananas. Add flour mixture alternately
#    with the buttermilk to the creamed mixture.
#    Stir in chopped walnuts.
#    Pour batter into the prepared pans.
#
# 3. Bake in the preheated oven for 30 minutes.
#    Remove from oven, and place on a damp tea towel to cool.
#

def ready_pan():
  return greased( floured( 'pan' ) )

def prepared_toppings():
  return stirred( chopped( 'walnuts' )

def creamed_definition():
  return creamed_until( 'fluffy', 'butter', 'white sugar', 'brown sugar' )

def cake_batter():
  return alternating_mixed(
    'buttermilk',
    whisked( 'flour', 'baking soda', 'salt' ),
    mixed( 'bananas', 'eggs', creamed_definition() )
  )

cake = cooled(
  removed_from_oven(
    added_to( '30min',
      poured( ready_pan() ,
              prepared_toppings() ,
              cake_batter() ,
              preheated( '175C', 'oven' )
      )
    )
  )