Homemade Tomato Ketchup from Fresh Tomatoes (Instant Pot)

Skip the store-bought bottle and make this homemade tomato ketchup from fresh tomatoes right in your Instant Pot. It's thick, tangy, naturally sweet, and completely free from preservatives, artificial colors, and additives - just real tomato flavor, made your way.

This Instant Pot tomato ketchup comes together with simple pantry staples and delivers that classic ketchup taste you love - only fresher, cleaner, and fully customizable. Perfect for fries, burgers, sandwiches, and your favorite Indian snacks like pakoras and samosas.

Homemade tomato ketchup is made by pressure-cooking fresh tomatoes with spices in the Instant Pot, blending until smooth, then simmering with vinegar and sweetener until thick. The result is a preservative-free ketchup with bright, real tomato flavor.

Jump to:

• Why Make Ketchup from Scratch?
• Ingredients for Homemade Tomato Ketchup
• How to Make Tomato Ketchup in the Instant Pot
• Stovetop Method (No Instant Pot Needed)
•  Pro Tips for the Best Homemade Ketchup
• Variations & Customizations
• Storage & Shelf Life
• Serving Ideas
• More Homemade Condiment & Sauce Recipes
• Frequently Asked Questions
• Homemade Tomato Ketchup from Fresh Tomatoes (Instant Pot)

Why Make Ketchup from Scratch?

Once you taste homemade ketchup made with ripe, fresh tomatoes, going back to the store-bought version is tough. Here's why this recipe is worth it:

• Made with real, fresh tomatoes - no concentrates or fillers
• No preservatives, artificial colors, or high-fructose corn syrup
• Customize sweetness, tang, and spice to your exact taste
• Thick, smooth, glossy texture - restaurant-style results
• Hands-off Instant Pot method with easy stovetop instructions too
• Stores for up to 3 months in the fridge or freeze for longer

Homemade ketchup also tastes notably brighter and more tomato-forward compared to commercial brands, which rely heavily on sugar and vinegar to mimic real tomato depth.

Ingredients for Homemade Tomato Ketchup

This recipe uses straightforward, everyday ingredients. Here's what you'll need and why each one matters:

• Fresh ripe tomatoes (3 lbs): The star of the show. Roma (plum) tomatoes are ideal - lower moisture, meatier flesh, naturally sweet-tart flavor, and faster cooking time. Any ripe tomatoes work, but avoid watery varieties as they require longer simmering.
• Water (¼ cup): Just enough to help the tomatoes pressure cook without scorching.
• Brown sugar (¼ cup): Balances the acidity of the tomatoes and vinegar. Adjust up or down to taste, or substitute with honey, dates, or a sugar-free sweetener.
• Distilled white vinegar (⅓ cup): Adds tang and acts as a natural preservative. Apple cider vinegar also works and adds a subtle fruity note.
• Granulated onion + garlic (1 teaspoon + ½ tsp): Provides savory depth without chunks. Fresh onion can be used instead - dice finely and cook down.
• Whole clove (1, ground): Classic ketchup spice. Adds that warm, slightly sweet back note.
• Ground mustard (⅛ tsp): Subtle heat and sharpness that rounds out the flavor.
• Celery salt (⅛ tsp): Signature ketchup flavor note - don't skip it.
• Black pepper + cayenne (⅛ teaspoon each): Gentle heat. Cayenne is optional for a mild ketchup.
• Worcestershire sauce (½ tsp): Adds umami depth. Use vegan Worcestershire to keep the recipe fully plant-based.
• Salt (1 tsp): Adjust to taste at the end.

How to Make Tomato Ketchup in the Instant Pot

The Instant Pot makes this recipe completely hands-off for the first phase. Follow these steps for perfect results every time.

Step 1: Prep the Tomatoes

Wash tomatoes, remove stems, and cut in half. No peeling needed - the skins blend and strain out smoothly. Roma tomatoes give the best color and thickness, but any ripe variety works.

Step 2: Pressure Cook

Add tomatoes and water to the Instant Pot inner pot. Close the lid with the vent sealed. Pressure cook on HIGH for 10 minutes, followed by 10 minutes of natural pressure release.

Step 3: Blend Until Smooth

Open the lid and use an immersion blender to blend the cooked tomatoes into a smooth puree. Then strain through a fine-mesh sieve to remove seeds and skins. Return the smooth puree to the pot.

Step 4: Simmer to Thicken (Sauté Mode)

Switch to Sauté Mode (Normal). Add brown sugar, white vinegar, and all the spices. Stir well to combine. Cook uncovered for 35-40 minutes, stirring frequently, until the ketchup thickens to your desired consistency.

Pro Tip: As it thickens, ketchup can splatter. Use a splatter screen or partially cover the pot. Do the plate test: drop a spoonful on a plate and tilt - if no watery liquid runs off, it's ready.

Step 5: Season and Cool

Taste and adjust salt, sugar, and vinegar to your preference. Turn off Sauté mode and let the ketchup cool completely before bottling. It will continue to thicken as it cools.

Step 6: Bottle and Refrigerate

Using a funnel, transfer the cooled ketchup into a clean, sterilized glass bottle or jar. Refrigerate overnight - the flavors meld beautifully and the texture firms up perfectly.

Stovetop Method (No Instant Pot Needed)

Don't have an Instant Pot? No problem. Add tomatoes and water to a large pot, bring to a boil, then reduce heat and simmer for 10-15 minutes until the tomatoes are completely soft. Blend, strain, and continue simmering with vinegar, sugar, and spices on medium-low heat for about 45-60 minutes until thick. The result is just as delicious, just requires a bit more active stirring.

 Pro Tips for the Best Homemade Ketchup

• Choose Roma (plum) tomatoes: They have low moisture, firm flesh, and a naturally concentrated flavor. Perfect for ketchup.
• Cook by consistency, not the clock: Cooking time varies by how juicy your tomatoes are. Simmer until thick, not just until the timer goes off.
• Always strain after blending: This gives ketchup its signature smooth, glossy finish - don't skip it.
• Watch for visual cues: Foam subsides, a glaze forms on top, and color deepens from pale red to rich dark red as it's ready.
• Do the plate test: Drop a spoonful onto a flat plate and tilt. If no liquid runs off, your ketchup is done.
• Cool before bottling: Hot ketchup in a sealed container traps steam and can affect the seal and shelf life.
• Refrigerate overnight: The spices bloom and flavors meld into a more rounded, complex ketchup after resting.

Variations & Customizations

This recipe is a great base. Here are some easy ways to make it your own:

• Sugar-free ketchup: Replace brown sugar with 2-3 pitted Medjool dates blended into the puree, or use a sugar-free sweetener like monk fruit, erythritol.
• Spicy ketchup: Add ½ teaspoon red chili flakes or ¼ teaspoon cayenne - great with fries or as a dipping sauce.
• Smoky ketchup: Add ½ teaspoon smoked paprika during the sauté phase for a barbecue-style depth.
• Low-sodium version: Reduce salt to ½ teaspoon and skip the celery salt - still flavorful with good tomatoes.
• No onion/garlic: Simply skip them. The tomato flavor will be sharper and more direct.
• Indian-spiced ketchup: Add a pinch of cumin and amchur (dry mango powder) for a desi twist - amazing with pakoras and samosas.

Storage & Shelf Life

• Refrigerator: Store in a clean, airtight glass bottle for up to 3 months. Always use a clean, dry spoon to avoid contamination.
• Freezer: Freeze in ice cube trays or small portions. Once frozen, transfer to a freezer bag. Thaw in the refrigerator overnight. Community member Peggy tested this - it came out perfectly after thawing from a 3-day freeze!
• Canning: If you'd like a shelf-stable version, process in a water bath canner for 15 minutes use proper USDA canning procedures.

Shelf Life Summary: Refrigerator: up to 3 months | Freezer: up to 6 months | Room temperature (unsealed): not recommended

Serving Ideas

Homemade tomato ketchup pairs beautifully with so many things:

• Classic French fries or oven-baked sweet potato fries
• Burgers, sliders, and sandwiches (try it on our Aloo Paneer Sandwich!)
• Pakoras, samosas, cutlets, and tikkis for Indian snack nights
• Air fryer chicken nuggets or veggie nuggets
• Grilled vegetables, scrambled eggs, or tofu scramble
• As a base for cocktail sauce, BBQ sauce, or marinades

More Homemade Condiment & Sauce Recipes

Love making things from scratch? You'll enjoy these homemade condiment favorites from the blog:

• Homemade Hot Sauce - bold, fiery, and incredibly easy
• Marinara Sauce with Fresh Tomatoes (Instant Pot) - perfect for pasta and pizza nights
• Tomato Chutney / Tomato Jam (Instant Pot) - sweet, tangy, and deeply flavorful
• Strawberry Jam - just 3 ingredients, no pectin needed
• Homemade Cherry Pie Filling - fresh, thick, and freezer-friendly

Frequently Asked Questions

This homemade tomato ketchup made with fresh tomatoes in the Instant Pot is a must-try if you love clean, homemade condiments. It's easy, customizable, and packed with real tomato flavor - no shortcuts, no preservatives, just good food.

TRIED THIS RECIPE?

★ If you tried this recipe, I would love to hear your feedback. Please rate the recipe and leave a comment below.

Follow me on Instagram, Facebook, and Pinterest, for all the latest on my blog!! Subscribe to my Youtube Channel for easy and delicious video recipes. Happy Cooking!!