Welcome to the delightful world of homemade goodness! This slow cooker homemade ketchup recipe is your ultimate answer to making the most of a bountiful summer tomato harvest. Forget about the bland, sugar-laden, store-bought alternatives and prepare to craft a vibrant, flavorful condiment that will revolutionize your meals. Imagine the satisfaction of knowing exactly what goes into your family’s ketchup – fresh, ripe tomatoes, savory spices, and a touch of sweetness, all simmered to perfection in a hands-off slow cooker. It’s not just a recipe; it’s an invitation to savor the true taste of summer, preserved for months to come.
My journey into the world of homemade ketchup, and indeed, much of my preserving, is often inspired by the incredible bounty of our local area. My friend Brandy, a fellow food blogger, lives nearby, and she’s one of the few who has actually witnessed the organized chaos that can sometimes be my kitchen. Her asking me to guest post, despite that insight, is a true testament to her wonderful nature! Living in a region blessed with an abundance of amazing farms means we are never short on fresh produce. While I cherish my own garden and the tomatoes I lovingly cultivate each summer, I often head to one of my favorite local farm stands when I’m planning a major canning session. There, I can find what I affectionately call “utility-grade tomatoes” – perfectly ripe, slightly imperfect, and wonderfully inexpensive, making them ideal for transforming into sauces, pastes, and, of course, this incredible ketchup.
I distinctly remember purchasing the vibrant red tomatoes you see in the image below the day before Hurricane Irene was set to hit. With a major storm approaching, I thought, “If we don’t lose power, this is the perfect opportunity for some serious tomato preserving!” My intuition told me that turning these fresh beauties into shelf-stable jars of deliciousness would be a productive and comforting way to weather the storm, filling our pantry with the warmth of summer. Little did I know, this batch would become particularly poignant.
Fortunately for us, our power remained on throughout the hurricane, allowing me to spend a day immersed in the gratifying process of creating jars upon jars of various tomato products. This was my way of ensuring a taste of summer would last us through the colder winter months. Among the many delicious recipes I prepared, this slow cooker ketchup quickly became a standout favorite. It’s a testament to the versatility and flavor that homemade preserves offer, making them an invaluable addition to any home cook’s pantry.
Now, you might be wondering, “Homemade ketchup? Why go through all that trouble when it’s so easy to grab a bottle from the supermarket?” The answer, my friends, lies in the unparalleled depth of flavor and the joy of creating something truly unique. This isn’t just any ketchup; it’s a spicy, richly flavored condiment that bears no resemblance to the mass-produced versions. Commercial ketchups often rely heavily on high-fructose corn syrup and artificial flavors, resulting in a one-dimensional sweetness that overpowers the natural taste of tomatoes. Our homemade version, however, allows the natural sweetness and tang of fresh tomatoes to shine through, beautifully complemented by a medley of aromatic spices.
Moreover, the beauty of this recipe lies in its simplicity, thanks to the humble crockpot. Apart from the initial prep work of peeling and seeding the tomatoes – a step that ensures a silky-smooth texture – the slow cooker does the heavy lifting. It gently simmers the ingredients for hours, allowing the flavors to meld and deepen without constant supervision. This ‘set it and forget it’ method makes preserving accessible even for busy schedules. Plus, there’s an undeniable satisfaction and a touch of bragging rights that come with saying, “Yes, I made my own ketchup!” It’s a rewarding culinary adventure that connects you more deeply with your food and the seasons. The memory of those tomatoes, purchased right before the storm, and the farm that lost the remainder of their crop to subsequent flooding, made every jar I sealed even more precious. It was a reminder of the fragility of nature’s bounty and the importance of preserving what we can.
Making your own ketchup also gives you complete control over the ingredients, allowing you to customize it to your family’s preferences. Want it spicier? Add more red pepper flakes. Prefer it a bit sweeter? Adjust the brown sugar. This level of customization is simply not possible with store-bought options. The slow cooking method is particularly excellent for ketchup because the extended, low-heat simmer allows the tomatoes to break down slowly, releasing their full flavor and natural pectin, which helps in thickening the sauce. This process concentrates the flavors beautifully, resulting in a rich, deeply colored, and intensely savory ketchup that’s far superior in taste and texture.
Beyond its incredible flavor, homemade ketchup is a fantastic way to utilize an abundance of fresh, ripe tomatoes, preventing food waste and ensuring you can enjoy the taste of summer long after the season ends. It’s an act of culinary mindfulness, connecting you to the source of your food and the age-old tradition of food preservation. So, gather your tomatoes, fire up your slow cooker, and prepare to embark on a flavorful journey that will yield a condiment so delicious, you’ll never look at store-bought ketchup the same way again.
More Tomato Recipes to Savor the Season
If you’re anything like me, a surplus of ripe, juicy tomatoes is a cause for celebration, not concern. After you’ve mastered this amazing slow cooker ketchup, you’ll likely be looking for more ways to enjoy the unparalleled flavor of fresh tomatoes. Their versatility means they can be transformed into countless dishes, from light summer salads to hearty roasted entrees. Here are some of my other favorite tomato recipes that truly capture the essence of the season:
- **The Ultimate Summertime Comfort:** Love an easy, nostalgic sandwich? Try my Summertime Tomato Sandwich. It’s simple, fresh, and highlights the tomato’s natural flavor.
- **A Refreshing Twist on a Classic:** Craving a vibrant salad with a unique sweet and savory profile? Try my Tomato Peach Caprese Salad. The addition of peaches adds an unexpected delightful sweetness.
- **Effortless Elegance:** Want to experience the best of the season with minimal effort? Try my On The Vine Roasted Tomatoes. Roasting brings out their inherent sweetness and deepens their flavor.
- **Quick and Flavorful:** Need an easy yet elegant breakfast or lunch option? Try my Tomato Ricotta Toast. It’s a perfect blend of creamy, fresh, and savory.
Slow Cooker Homemade Ketchup
Brandy O’Neill – Nutmeg Nanny
3
(8 ounce) jars
2 hours
12 hours
14 hours
Saved
Equipment
-
Water Bath Canner Pot
-
8 ounce Canning Jars
-
Stainless Steel Canning Set Starter Kit
Ingredients
-
6
pounds
ripe tomatoes -
1/2
large yellow onion,
peeled and roughly chopped -
2
fat cloves garlic,
peeled -
1/2
cup
sherry or apple cider vinegar -
1/2
cup
dark brown sugar
-
2
tablespoons
jarred capers,
with brine -
2-3
teaspoons
salt,
to taste -
1
teaspoon
ground cinnamon
-
1
teaspoon
ground cumin -
1
teaspoon
paprika -
1
teaspoon
red pepper flakes -
1/2
teaspoon
ground white pepper -
1/4
teaspoon
allspice
Instructions
-
Blanche the tomatoes in boiling water for 1-2 minutes. This brief dip in hot water helps loosen their skins, making them much easier to peel for a smoother ketchup texture.
-
Remove with a slotted spoon to a bowl, allow to cool a bit (or plunge into an ice bath for quicker cooling), then carefully peel them.
-
Set the peeled tomatoes in a colander over a clean bowl. Core them and cut into quarters, then gently squeeze as much liquid and as many seeds out of the tomatoes as possible. This step is crucial for achieving a thick, concentrated ketchup and reducing cooking time. The drained liquid can be saved for soups or sauces!
-
Process the drained tomato chunks with the onion and garlic in a blender until a smooth puree forms. For an extra fine texture, you can pass this puree through a food mill or fine-mesh sieve.
-
Pour the tomato puree into your crockpot and add the rest of the ingredients: sherry or apple cider vinegar, dark brown sugar, jarred capers with their brine, salt, ground cinnamon, ground cumin, paprika, red pepper flakes, and ground white pepper. Stir everything well to combine, ensuring all spices are evenly distributed.
-
Cook on high for 10-12 hours. This long, slow simmer is where the magic happens! The mixture will reduce significantly, thicken to a rich consistency, and deepen in color. Stir the ketchup occasionally, especially towards the end, to prevent sticking and ensure even cooking. Feel free to taste and adjust the seasonings (more salt, a pinch more sugar, or extra spice) as it cooks to achieve your perfect flavor balance. The aroma filling your kitchen will be incredible!
-
After the ketchup has finished cooking and achieved your desired thickness, allow it to cool slightly before processing it again in a blender for another minute or two. This final blend will ensure a super smooth, commercial-quality texture.
-
To prepare for canning, bring the smoothed ketchup back to a rolling boil in a small pot on the stove. While it’s heating, sterilize your 8-ounce canning jars (I typically use three for this recipe). Once the ketchup is boiling, carefully ladle the hot ketchup into the sterile jars, leaving 1/2 inch of headspace at the top to allow for proper sealing.
-
Remove any trapped air bubbles by running a small, non-metallic knife or a specialized canning bubble remover around the inside of each jar. This ensures a good seal and prevents spoilage.
-
Wipe the rims of the jars meticulously with a clean, damp cloth to remove any food residue. This is vital for a strong seal. Place the lids on the jars, then screw on the bands to fingertip tight – not too loose, not too tight.
-
Process the filled jars in a boiling water bath canner for 10 minutes. Ensure the jars are completely submerged in the boiling water throughout the processing time. After 10 minutes, turn off the heat and let the jars rest in the hot water for an additional 5 minutes before carefully removing them.
-
Cool the jars at room temperature overnight (typically 12-24 hours) on a towel, undisturbed. As they cool, you should hear a “pop” sound as the lids seal. The next morning, check to make sure the jars have sealed properly by pressing the center of each lid; it should not flex.
-
Properly sealed jars can be stored in a cool, dark place for up to a year. Once a jar is opened, the homemade ketchup should be refrigerated and will last for a couple of weeks, though it’s so delicious, it rarely lasts that long! Enjoy your homemade masterpiece!
Additional Info
Preserving
Tried this recipe?
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