add cocoa, baking soda, powdered sugar, pine nuts
sort units
add pound unit
C for cups
sort ingredients
butter
t for teaspoon
T for tablespoon
cocoa regexp + "powder"
peanut butter
accept "tablespoons"
tweak tea/tablespoons
tweak ounce
fix test case
salt
dulce de leche, light corn syrup
allow no space between number and unit
convert Fahrenheit
bicarbonate of soda
baking powder