Example factory contract

Bakery.sol

pragma solidity ^0.4.9;

contract Cookie {

    bool public hasChocolate;
    
    function Cookie(bool _hasChocolate) public {
      hasChocolate = _hasChocolate;
    }

}

contract Bakery {

    address public  baker;
    address[] public cookies;
    
    function Bakery() {
      baker = msg.sender;
    }
    
    function bakeCookie(bool _isChocolateChip) public {
      Cookie c = new Cookie(_isChocolateChip);
      cookies.push(c);
    }
    
    function addCookie(address _cookie) public {
        cookies.push(_cookie);
    }
}