leavening agents is the food
Think of this type of person as a two-faced person. That's because these "agents" pretended to work for one country (Germany, for example), but was actually collecting data and observing things and...
yeah take each ingredient and double the amount it calls for.. this goes for doing half the amount the recipe yeilds
Yes
Take every measurement and DOUBLE it. EXAMPLE: If it askes for 1/2 teaspoon of something; now you want to make that 1 teaspoon.