Easy Homemade Ketchup in the Slow Cooker + DIY in the Kitchen

This is a guest post by Melanie Zook, MA, RD, LDN. She is the blogger behind Fresh Start Nutrition where she offers wellness classes, workshops, pantry makeovers, and nutrition consultations. She lives here in the Charlotte, NC area, and I thought you all would enjoy her homemade ketchup recipe from her new DIY Kitchen Cookbook!

Easy Homemade Ketchup in the Slow Cooker + DIY in the Kitchen on 100 Days of #RealFood
Hi there, I’m Melanie, and I think the kitchen is the perfect place to do it yourself (DIY).

Why DIY in the kitchen?

  • YOU are in control.
    You know exactly what’s going into your food – no preservatives or artificial flavors, colors, or sweeteners, just whole, clean, healthy foods instead of processed foods that are full of unnecessary additives.
  • You’ll save time and money, as well as space in your pantry and refrigerator.
    Once you stock up on the ingredients you’ll need for a DIY kitchen, you won’t have to buy as many premade staples and you can save yourself the extra errands. Spend some time putting together the make-ahead mixes and you’re done.
  • It’s green.
    You can skip the excess packaging of premade, processed foods.
  • It’s worth it to make some of your meal and snack staples.
    They take a matter of minutes using ingredients you probably already have on hand. (But some DIY recipes out there just aren’t worth the time and hassle if you can already find affordable clean versions in the store.)

These reasons are exactly what inspired me to put together my new DIY Kitchen Cookbook*It covers how to Make Your Own Clean & Healthy Make-Ahead Mixes, Seasoning Blends, Snacks, Breakfasts, Condiments, Dressings & Drinks with copycat recipes that are cleaner, healthier, and more budget-friendly versions of what you’d normally buy in a grocery store. The recipes are designed so you can tweak them to fit your family’s preferences or swap out ingredients to make them allergy friendly.

Homemade Ketchup in the Slow Cooker

 Easy Homemade Ketchup in the Slow Cooker + DIY in the Kitchen on 100 Days of #RealFood

Let’s start with ketchup. It’s a kid-friendly kitchen, restaurant, and picnic staple, but the bottled, store-bought version is one of the condiments highest in sodium and sugar (often in the form of high fructose corn syrup). And some of the new reduced sugar varieties are made with artificial sweeteners. By making your own, however, you can control how much salt is added and skip the processed sugar altogether by using honey as the sweetener.

Easy Homemade Ketchup in the Slow Cooker + DIY in the Kitchen on 100 Days of #RealFoodHomemade ketchup makes a perfect summertime hostess gift. Double the recipe, pour into mason jars, and tie on a bow.

It also freezes well (leave headroom if freezing in jars to allow for expansion). Or freeze in an ice cube tray so you can thaw out individual portions when you need them for serving food or when making other recipes, such as barbecue sauce.

Many people are pretty loyal to their ketchup brand, so I knew this recipe would be a tough one to develop. But my Heinz-loving husband from Pittsburgh approves. I hope you do too!

Easy Homemade Ketchup in the Slow Cooker + DIY in the Kitchen 3

Homemade Ketchup in the Slow Cooker

From The DIY Kitchen Cookbook by Melanie Zook, MA, RD of Fresh Start Nutrition
4.5 from 13 votes
Prep Time: 5 mins
Cook Time: 8 hrs
Total Time: 8 hrs 5 mins
Print Recipe
Servings: 20 ounces



  • Add all ingredients to a slow cooker.
  • Cook on low for 8 hours or until thick.
  • Store in a glass jar or a squeeze bottle in the refrigerator or freeze.


• We recommend organic ingredients when feasible.
• Use the same measuring cup for the honey that you did for the vinegar. Honey slides out of a wet measuring cup much better than out of a dry one.
• Grind whole cloves using a mortar and pestle or with the flat side of a chef’s knife.
Nutrition Facts
Nutrition Facts
Homemade Ketchup in the Slow Cooker
Amount Per Serving
Calories 122 Calories from Fat 9
% Daily Value*
Fat 1g2%
Saturated Fat 1g6%
Sodium 259mg11%
Potassium 1087mg31%
Carbohydrates 29g10%
Fiber 5g21%
Sugar 19g21%
Protein 4g8%
Vitamin A 1255IU25%
Vitamin C 26.2mg32%
Calcium 45mg5%
Iron 4.4mg24%
* Percent Daily Values are based on a 2000 calorie diet.
Tried this recipe?Let us know how it was!

(*FYI – You do not need a Kindle device to download and read this ebook. FREE apps for just about any desktop, smartphone, or tablet are available on Amazon or in your gadget’s app store.)

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134 thoughts on “Easy Homemade Ketchup in the Slow Cooker + DIY in the Kitchen”

  1. 4 stars
    I made faux Alfredo sauce tonight. Garlic, Parmesan cheese, vegetable broth, cooked cauliflower in blender until creamy. Served over spaghetti squash with peas and sautéed mushrooms.

  2. 4 stars
    This looks like a great recipe and I chose it to use as a start up recipe. I made my changes to suit our tastes. I subbed honey for reg corn syrup and added about 1/3 cup sugar. I also added more salt, black pepper and cayenne pepper. I decided not to use my slow cooker and added one can of tomato paste and simmered for about 30 minutes. All the other spice measurements were spot on. Thanks for sharing your recipe.

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