Input error help

[Banana4scale]

I am having trouble running my program. My computer said the error has to do with my input. I would appreciate any help. The program is supposed to print the amt. of ingredients needed for any batch of cookies. The batch of cookies being the input.

//
//	Grant 
//	CMPSC 121
//	1/31/2018
//	Description
//

//	Pound includes
#include<iostream>
using namespace std;

//	Class Definitions
class Recipe {
	public:
	
		//	Constant amounts for 96 cookies
		const double sugar = 2.5;
		const double butter = 1.5;
		const double flour = 3.5;
		const int cookies = 96;
		
		//	Multiplier
		double cookiesToMake;
		double cookieMultiplier;
		
		//	Recipe Amounts
		double recipeSugar;
		double recipeButter;
		double recipeFlour;
		int recipeCookies;
		
};

int main(void) {

	// Splash Screen
	cout << endl;
	cout << "Grant Wynn" << endl;
	cout << "CMPSC 121" << endl;
	cout << "January 31 2018" << endl;
	cout << "Program Description" << endl;
	cout << endl;

	//	Create the Recipe Object
	Recipe myCookies;
	
	//	Initialize all of the recipe amounts and enter cookies to make
	myCookies.recipeSugar;
	myCookies.recipeButter;
	myCookies.recipeFlour;
	myCookies.recipeCookies = 96; 
	cout << "How many cookies do you want to make?" << endl;
	cin >> myCookies.cookiesToMake >> endl;
	//	Calculate the multiplier	
	myCookies.cookieMultiplier = myCookies.cookiesToMake / myCookies.cookies;

	//	Calculate the recipe amounts
		myCookies.recipeSugar = myCookies.sugar * myCookies.cookieMultiplier;
		myCookies.recipeButter = myCookies.butter * myCookies.cookieMultiplier;
		myCookies.recipeFlour = myCookies.flour * myCookies.cookieMultiplier;
	
	//	Print the results
	cout << myCookies.cookiesToMake << "cookies" << endl;
	cout << myCookies.recipeSugar << "cups of sugar" << endl;
	cout << myCookies.recipeButter << "cups of butter" << endl;
	cout << myCookies.recipeFlour << "cups of flour" << endl;
	//	Including number of cookies to make and the amount of each ingredient

	return 0;
};

[chicofeo]

Line 53 should be:
cin >> myCookies.cookiesToMake;
and not:
cin >> myCookies.cookiesToMake >> endl;