How do you get the two great tastes achievement on more cookies?

Here's how to do it:

1. Unlock the Milk Factory: This building is unlocked at level 15 of the Bank.

2. Build a Milk Factory: You'll need to buy at least one Milk Factory.

3. Start Production: Both your Cookie Factories and Milk Factories will start producing their respective items simultaneously.

4. Achievement Unlocked: Once you have both cookies and milk being produced at the same time, the "Two Great Tastes" achievement will unlock.

Important Note: The achievement only requires that both items are being produced, not that they are being produced at equal rates. You can have a single Milk Factory and many Cookie Factories and still unlock the achievement.