I buy my vanilla from old Mexico. One bottle is about the size of the vodka bottle above. My mom gave me a bottle in my early married years that lasted me 20 years! Guess I don't cook as much as I thought. The bottle I have now looks watered down but tastes good. To answer Double R, just use 1/3 to 1/2 of what your recipe calls for. The home made stuff sounds potent, but wonderful!