The Best Way To Make Homemade Ketchup BySamantha Bansil, 08/24/2018 Gourmandize shares Share on Facebook Share on Twitter Pin it Share on WhatsApp Share on Google+ 3/5 Previous Next © Thinkstock Adding Sweetener Now it's time to add the sweetener! You can use either 1/3 cup maple syrup or 1/3 cup brown sugar, adjusting the quantity according to how sweet you like your ketchup. Mix all the ingredients together, blending thoroughly. More steaming articles Food HACK: Easy Homemade Ice Cream... Top 10 Tips for Great Food Photos How to Use a BBQ Chef Tips and Tricks FAST-FOOD STYLE MAYONNAISE How to make fast-food style mayonnaise in a pinch!